49211172 has 24 divisors (see below), whose sum is σ = 127584800. Its totient is φ = 16403688.

The previous prime is 49211171. The next prime is 49211177. The reversal of 49211172 is 27111294.

49211172 is a `hidden beast` number, since 492 + 1 + 1 + 172 = 666.

It is a super-2 number, since 2×49211172² = 4843478899227168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (49211171) 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, 227722 + ... + 227937.

Almost surely, 2^49211172 is an apocalyptic number.

It is an amenable number.

49211172 is an abundant number, since it is smaller than the sum of its proper divisors (78373628).

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

49211172 is a wasteful number, since it uses less digits than its factorization.

49211172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455672 (or 455664 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 49211172 is about 7015.0674978934. The cubic root of 49211172 is about 366.4554930950.

It can be divided in two parts, 492 and 11172, that added together give a square (11664 = 108²).

The spelling of 49211172 in words is "forty-nine million, two hundred eleven thousand, one hundred seventy-two".