49921188 has 12 divisors (see below), whose sum is σ = 116482800. Its totient is φ = 16640392.

The previous prime is 49921141. The next prime is 49921199. The reversal of 49921188 is 88112994.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×49921188² = 4984250022662688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2080038 + ... + 2080061.

It is an arithmetic number, because the mean of its divisors is an integer number (9706900).

Almost surely, 2^49921188 is an apocalyptic number.

It is an amenable number.

49921188 is an abundant number, since it is smaller than the sum of its proper divisors (66561612).

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

49921188 is a wasteful number, since it uses less digits than its factorization.

49921188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160106 (or 4160104 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The square root of 49921188 is about 7065.4927641319. The cubic root of 49921188 is about 368.2094841468.

The spelling of 49921188 in words is "forty-nine million, nine hundred twenty-one thousand, one hundred eighty-eight".