49915318 has 16 divisors (see below), whose sum is σ = 79441920. Its totient is φ = 23455656.

The previous prime is 49915309. The next prime is 49915319. The reversal of 49915318 is 81351994.

It is a super-2 number, since 2×49915318² = 4983077942082248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49915319) 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, 346 + ... + 9997.

It is an arithmetic number, because the mean of its divisors is an integer number (4965120).

Almost surely, 2^49915318 is an apocalyptic number.

49915318 is a deficient number, since it is larger than the sum of its proper divisors (29526602).

49915318 is a wasteful number, since it uses less digits than its factorization.

49915318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491.

The product of its digits is 38880, while the sum is 40.

The square root of 49915318 is about 7065.0773527259. The cubic root of 49915318 is about 368.1950515683.

The spelling of 49915318 in words is "forty-nine million, nine hundred fifteen thousand, three hundred eighteen".