42905924 has 12 divisors (see below), whose sum is σ = 76683264. Its totient is φ = 20996424.

The previous prime is 42905917. The next prime is 42905981. The reversal of 42905924 is 42950924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113924 + ... + 114299.

It is an arithmetic number, because the mean of its divisors is an integer number (6390272).

Almost surely, 2^42905924 is an apocalyptic number.

It is an amenable number.

42905924 is a deficient number, since it is larger than the sum of its proper divisors (33777340).

42905924 is a wasteful number, since it uses less digits than its factorization.

42905924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228274 (or 228272 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 42905924 is about 6550.2613688310. The cubic root of 42905924 is about 350.0841267163.

The spelling of 42905924 in words is "forty-two million, nine hundred five thousand, nine hundred twenty-four".