42408928 has 24 divisors (see below), whose sum is σ = 83666520. Its totient is φ = 21160320.

The previous prime is 42408913. The next prime is 42408929. The reversal of 42408928 is 82980424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42408929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18738 + ... + 20878.

It is an arithmetic number, because the mean of its divisors is an integer number (3486105).

Almost surely, 2^42408928 is an apocalyptic number.

It is an amenable number.

42408928 is a deficient number, since it is larger than the sum of its proper divisors (41257592).

42408928 is a wasteful number, since it uses less digits than its factorization.

42408928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770 (or 2762 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 42408928 is about 6512.2137557055. The cubic root of 42408928 is about 348.7271535159.

The spelling of 42408928 in words is "forty-two million, four hundred eight thousand, nine hundred twenty-eight".