42504032 has 24 divisors (see below), whose sum is σ = 84514752. Its totient is φ = 21040000.

The previous prime is 42504019. The next prime is 42504037. The reversal of 42504032 is 23040524.

It is a junction number, because it is equal to n+sod(n) for n = 42503995 and 42504013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42504037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3344 + ... + 9807.

It is an arithmetic number, because the mean of its divisors is an integer number (3521448).

Almost surely, 2^42504032 is an apocalyptic number.

It is an amenable number.

42504032 is a deficient number, since it is larger than the sum of its proper divisors (42010720).

42504032 is a wasteful number, since it uses less digits than its factorization.

42504032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13262 (or 13254 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42504032 is about 6519.5116381520. The cubic root of 42504032 is about 348.9876378683.

Adding to 42504032 its reverse (23040524), we get a palindrome (65544556).

The spelling of 42504032 in words is "forty-two million, five hundred four thousand, thirty-two".