42020400032 has 24 divisors (see below), whose sum is σ = 89091329796. Its totient is φ = 19394030592.

The previous prime is 42020400017. The next prime is 42020400067. The reversal of 42020400032 is 23000402024.

It can be written as a sum of positive squares in 2 ways, for example, as 41794078096 + 226321936 = 204436^2 + 15044^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50504873 + ... + 50505704.

Almost surely, 2^42020400032 is an apocalyptic number.

It is an amenable number.

42020400032 is an abundant number, since it is smaller than the sum of its proper divisors (47070929764).

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

42020400032 is a wasteful number, since it uses less digits than its factorization.

42020400032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101010600 (or 101010592 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 42020400032 its reverse (23000402024), we get a palindrome (65020802056).

The spelling of 42020400032 in words is "forty-two billion, twenty million, four hundred thousand, thirty-two".