42397434 has 24 divisors (see below), whose sum is σ = 91990080. Its totient is φ = 14112648.

The previous prime is 42397427. The next prime is 42397447. The reversal of 42397434 is 43479324.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17569 + ... + 19835.

It is an arithmetic number, because the mean of its divisors is an integer number (3832920).

Almost surely, 2^42397434 is an apocalyptic number.

42397434 is an abundant number, since it is smaller than the sum of its proper divisors (49592646).

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

42397434 is a wasteful number, since it uses less digits than its factorization.

42397434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314 (or 3311 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 42397434 is about 6511.3312003000. The cubic root of 42397434 is about 348.6956457473.

The spelling of 42397434 in words is "forty-two million, three hundred ninety-seven thousand, four hundred thirty-four".