42648957 has 16 divisors (see below), whose sum is σ = 68044480. Its totient is φ = 26245296.

The previous prime is 42648929. The next prime is 42648959. The reversal of 42648957 is 75984624.

It is a happy number.

It is not a de Polignac number, because 42648957 - 2⁷ = 42648829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42648959) 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, 60403 + ... + 61104.

It is an arithmetic number, because the mean of its divisors is an integer number (4252780).

Almost surely, 2^42648957 is an apocalyptic number.

It is an amenable number.

42648957 is a deficient number, since it is larger than the sum of its proper divisors (25395523).

42648957 is a wasteful number, since it uses less digits than its factorization.

42648957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121529 (or 121523 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 42648957 is about 6530.6168927598. The cubic root of 42648957 is about 349.3838328951.

The spelling of 42648957 in words is "forty-two million, six hundred forty-eight thousand, nine hundred fifty-seven".