158265240 has 128 divisors (see below), whose sum is σ = 574594560. Its totient is φ = 34043904.

The previous prime is 158265227. The next prime is 158265259. The reversal of 158265240 is 42562851.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8739 + ... + 19821.

It is an arithmetic number, because the mean of its divisors is an integer number (4489020).

Almost surely, 2^158265240 is an apocalyptic number.

158265240 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 158265240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287297280).

158265240 is an abundant number, since it is smaller than the sum of its proper divisors (416329320).

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

158265240 is a wasteful number, since it uses less digits than its factorization.

158265240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11121 (or 11117 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 158265240 is about 12580.3513464450. The cubic root of 158265240 is about 540.9143630757.

The spelling of 158265240 in words is "one hundred fifty-eight million, two hundred sixty-five thousand, two hundred forty".