42898257 has 12 divisors (see below), whose sum is σ = 65225680. Its totient is φ = 27093528.

The previous prime is 42898249. The next prime is 42898283. The reversal of 42898257 is 75289824.

It is not a de Polignac number, because 42898257 - 2³ = 42898249 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (42898957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125263 + ... + 125604.

Almost surely, 2^42898257 is an apocalyptic number.

It is an amenable number.

42898257 is a deficient number, since it is larger than the sum of its proper divisors (22327423).

42898257 is a wasteful number, since it uses less digits than its factorization.

42898257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250892 (or 250889 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 42898257 is about 6549.6760988617. The cubic root of 42898257 is about 350.0632729146.

The spelling of 42898257 in words is "forty-two million, eight hundred ninety-eight thousand, two hundred fifty-seven".