42015232 has 80 divisors (see below), whose sum is σ = 101154240. Its totient is φ = 17031168.

The previous prime is 42015179. The next prime is 42015247. The reversal of 42015232 is 23251024.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67788 + ... + 68404.

It is an arithmetic number, because the mean of its divisors is an integer number (1264428).

Almost surely, 2^42015232 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 42015232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50577120).

42015232 is an abundant number, since it is smaller than the sum of its proper divisors (59139008).

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

42015232 is an equidigital number, since it uses as much as digits as its factorization.

42015232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42015232 is about 6481.9157661914. The cubic root of 42015232 is about 347.6446807096.

Adding to 42015232 its reverse (23251024), we get a palindrome (65266256).

The spelling of 42015232 in words is "forty-two million, fifteen thousand, two hundred thirty-two".