42920608 has 24 divisors (see below), whose sum is σ = 84999348. Its totient is φ = 21333504.

The previous prime is 42920567. The next prime is 42920617. The reversal of 42920608 is 80602924.

It can be written as a sum of positive squares in 2 ways, for example, as 29289744 + 13630864 = 5412^2 + 3692^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42920608.

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, 1660 + ... + 9412.

Almost surely, 2^42920608 is an apocalyptic number.

It is an amenable number.

42920608 is a deficient number, since it is larger than the sum of its proper divisors (42078740).

42920608 is a wasteful number, since it uses less digits than its factorization.

42920608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936 (or 7928 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42920608 is about 6551.3821442502. The cubic root of 42920608 is about 350.1240594226.

The spelling of 42920608 in words is "forty-two million, nine hundred twenty thousand, six hundred eight".