42250032 has 160 divisors (see below), whose sum is σ = 140348160. Its totient is φ = 12026880.

The previous prime is 42250031. The next prime is 42250051. The reversal of 42250032 is 23005224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42249987 and 42250014.

It is not an unprimeable number, because it can be changed into a prime (42250031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80523 + ... + 81045.

It is an arithmetic number, because the mean of its divisors is an integer number (877176).

Almost surely, 2^42250032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42250032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70174080).

42250032 is an abundant number, since it is smaller than the sum of its proper divisors (98098128).

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

42250032 is a wasteful number, since it uses less digits than its factorization.

42250032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 42250032 is about 6500.0024615380. The cubic root of 42250032 is about 348.2910763256.

Adding to 42250032 its reverse (23005224), we get a palindrome (65255256).

The spelling of 42250032 in words is "forty-two million, two hundred fifty thousand, thirty-two".