49071918 has 32 divisors (see below), whose sum is σ = 112529664. Its totient is φ = 13974912.

The previous prime is 49071907. The next prime is 49071923. The reversal of 49071918 is 81917094.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12421 + ... + 15887.

It is an arithmetic number, because the mean of its divisors is an integer number (3516552).

Almost surely, 2^49071918 is an apocalyptic number.

49071918 is an abundant number, since it is smaller than the sum of its proper divisors (63457746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49071918 is a wasteful number, since it uses less digits than its factorization.

49071918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 49071918 is about 7005.1351164699. The cubic root of 49071918 is about 366.1095106623.

The spelling of 49071918 in words is "forty-nine million, seventy-one thousand, nine hundred eighteen".