49220031 has 32 divisors (see below), whose sum is σ = 77045248. Its totient is φ = 27371520.

The previous prime is 49220021. The next prime is 49220071. The reversal of 49220031 is 13002294.

It is not a de Polignac number, because 49220031 - 2⁵ = 49219999 is a prime.

It is a super-2 number, since 2×49220031² = 4845222903281922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148536 + ... + 148866.

It is an arithmetic number, because the mean of its divisors is an integer number (2407664).

Almost surely, 2^49220031 is an apocalyptic number.

49220031 is a deficient number, since it is larger than the sum of its proper divisors (27825217).

49220031 is a wasteful number, since it uses less digits than its factorization.

49220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 49220031 is about 7015.6988960473. The cubic root of 49220031 is about 366.4774815601.

The spelling of 49220031 in words is "forty-nine million, two hundred twenty thousand, thirty-one".