42513904 has 10 divisors (see below), whose sum is σ = 82370720. Its totient is φ = 21256944.

The previous prime is 42513901. The next prime is 42513917. The reversal of 42513904 is 40931524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42513901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328544 + ... + 1328575.

It is an arithmetic number, because the mean of its divisors is an integer number (8237072).

Almost surely, 2^42513904 is an apocalyptic number.

It is an amenable number.

42513904 is a deficient number, since it is larger than the sum of its proper divisors (39856816).

42513904 is a wasteful number, since it uses less digits than its factorization.

42513904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657127 (or 2657121 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42513904 is about 6520.2687061194. The cubic root of 42513904 is about 349.0146544367.

The spelling of 42513904 in words is "forty-two million, five hundred thirteen thousand, nine hundred four".