158030040 has 128 divisors (see below), whose sum is σ = 544320000. Its totient is φ = 35954688.

The previous prime is 158030023. The next prime is 158030057. The reversal of 158030040 is 40030851.

158030040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 12571²-1.

It is an interprime number because it is at equal distance from previous prime (158030023) and next prime (158030057).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 158029989 and 158030016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351736 + ... + 352184.

It is an arithmetic number, because the mean of its divisors is an integer number (4252500).

Almost surely, 2^158030040 is an apocalyptic number.

158030040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158030040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272160000).

158030040 is an abundant number, since it is smaller than the sum of its proper divisors (386289960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158030040 is a wasteful number, since it uses less digits than its factorization.

158030040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 158030040 is about 12570.9999602259. Note that the first 4 decimals coincide. The cubic root of 158030040 is about 540.6462769757.

Adding to 158030040 its reverse (40030851), we get a palindrome (198060891).

The spelling of 158030040 in words is "one hundred fifty-eight million, thirty thousand, forty".