49657918 has 16 divisors (see below), whose sum is σ = 81589680. Its totient is φ = 22562176.

The previous prime is 49657913. The next prime is 49657919. The reversal of 49657918 is 81975694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49657913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24196 + ... + 26167.

It is an arithmetic number, because the mean of its divisors is an integer number (5099355).

Almost surely, 2^49657918 is an apocalyptic number.

49657918 is a deficient number, since it is larger than the sum of its proper divisors (31931762).

49657918 is a wasteful number, since it uses less digits than its factorization.

49657918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50411.

The product of its digits is 544320, while the sum is 49.

The square root of 49657918 is about 7046.8374466849. The cubic root of 49657918 is about 367.5610659472.

The spelling of 49657918 in words is "forty-nine million, six hundred fifty-seven thousand, nine hundred eighteen".