42310257 has 32 divisors (see below), whose sum is σ = 64696320. Its totient is φ = 24360000.

The previous prime is 42310253. The next prime is 42310259. The reversal of 42310257 is 75201324.

It is not a de Polignac number, because 42310257 - 2² = 42310253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42310253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60007 + ... + 60707.

It is an arithmetic number, because the mean of its divisors is an integer number (2021760).

Almost surely, 2^42310257 is an apocalyptic number.

It is an amenable number.

42310257 is a deficient number, since it is larger than the sum of its proper divisors (22386063).

42310257 is a wasteful number, since it uses less digits than its factorization.

42310257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 42310257 is about 6504.6335023581. The cubic root of 42310257 is about 348.4564874140.

The spelling of 42310257 in words is "forty-two million, three hundred ten thousand, two hundred fifty-seven".