42658959 has 24 divisors (see below), whose sum is σ = 66410928. Its totient is φ = 24286080.

The previous prime is 42658921. The next prime is 42658963. The reversal of 42658959 is 95985624.

It is not a de Polignac number, because 42658959 - 2¹² = 42654863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42658909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76309 + ... + 76865.

It is an arithmetic number, because the mean of its divisors is an integer number (2767122).

Almost surely, 2^42658959 is an apocalyptic number.

42658959 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

42658959 is a deficient number, since it is larger than the sum of its proper divisors (23751969).

42658959 is a wasteful number, since it uses less digits than its factorization.

42658959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1088 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 42658959 is about 6531.3826254477. The cubic root of 42658959 is about 349.4111431679.

The spelling of 42658959 in words is "forty-two million, six hundred fifty-eight thousand, nine hundred fifty-nine".