42904325 has 24 divisors (see below), whose sum is σ = 55094688. Its totient is φ = 33122880.

The previous prime is 42904297. The next prime is 42904339. The reversal of 42904325 is 52340924.

It is a de Polignac number, because none of the positive numbers 2^k-42904325 is a prime.

It is a super-2 number, since 2×42904325² = 3681562207411250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114839 + ... + 115211.

It is an arithmetic number, because the mean of its divisors is an integer number (2295612).

Almost surely, 2^42904325 is an apocalyptic number.

It is an amenable number.

42904325 is a deficient number, since it is larger than the sum of its proper divisors (12190363).

42904325 is a wasteful number, since it uses less digits than its factorization.

42904325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 42904325 is about 6550.1393114956. The cubic root of 42904325 is about 350.0797777327.

The spelling of 42904325 in words is "forty-two million, nine hundred four thousand, three hundred twenty-five".