42342657 has 16 divisors (see below), whose sum is σ = 65341440. Its totient is φ = 23888592.

The previous prime is 42342653. The next prime is 42342679. The reversal of 42342657 is 75624324.

It is not a de Polignac number, because 42342657 - 2² = 42342653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42342653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11103 + ... + 14420.

It is an arithmetic number, because the mean of its divisors is an integer number (4083840).

Almost surely, 2^42342657 is an apocalyptic number.

It is an amenable number.

42342657 is a deficient number, since it is larger than the sum of its proper divisors (22998783).

42342657 is a wasteful number, since it uses less digits than its factorization.

42342657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25612.

The product of its digits is 40320, while the sum is 33.

The square root of 42342657 is about 6507.1235580708. The cubic root of 42342657 is about 348.5454107655.

The spelling of 42342657 in words is "forty-two million, three hundred forty-two thousand, six hundred fifty-seven".