42457308 has 24 divisors (see below), whose sum is σ = 99175440. Its totient is φ = 14136960.

The previous prime is 42457307. The next prime is 42457319. The reversal of 42457308 is 80375424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42457301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16578 + ... + 18966.

It is an arithmetic number, because the mean of its divisors is an integer number (4132310).

Almost surely, 2^42457308 is an apocalyptic number.

It is an amenable number.

42457308 is an abundant number, since it is smaller than the sum of its proper divisors (56718132).

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

42457308 is a wasteful number, since it uses less digits than its factorization.

42457308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877 (or 3875 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 42457308 is about 6515.9272555792. The cubic root of 42457308 is about 348.8597121455.

The spelling of 42457308 in words is "forty-two million, four hundred fifty-seven thousand, three hundred eight".