42657504 has 24 divisors (see below), whose sum is σ = 111976200. Its totient is φ = 14219136.

The previous prime is 42657491. The next prime is 42657523. The reversal of 42657504 is 40575624.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 222079 + ... + 222270.

It is an arithmetic number, because the mean of its divisors is an integer number (4665675).

Almost surely, 2^42657504 is an apocalyptic number.

It is an amenable number.

42657504 is an abundant number, since it is smaller than the sum of its proper divisors (69318696).

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

42657504 is a wasteful number, since it uses less digits than its factorization.

42657504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444362 (or 444354 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 42657504 is about 6531.2712391999. The cubic root of 42657504 is about 349.4071705831.

The spelling of 42657504 in words is "forty-two million, six hundred fifty-seven thousand, five hundred four".