49118220 has 36 divisors (see below), whose sum is σ = 148992480. Its totient is φ = 13098144.

The previous prime is 49118191. The next prime is 49118231. The reversal of 49118220 is 2281194.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136260 + ... + 136619.

It is an arithmetic number, because the mean of its divisors is an integer number (4138680).

Almost surely, 2^49118220 is an apocalyptic number.

It is an amenable number.

49118220 is an abundant number, since it is smaller than the sum of its proper divisors (99874260).

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

49118220 is a wasteful number, since it uses less digits than its factorization.

49118220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272894 (or 272889 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 49118220 is about 7008.4391985663. The cubic root of 49118220 is about 366.2246224850.

It can be divided in two parts, 4911 and 8220, that added together give a palindrome (13131).

The spelling of 49118220 in words is "forty-nine million, one hundred eighteen thousand, two hundred twenty".