49311930 has 64 divisors (see below), whose sum is σ = 123959808. Its totient is φ = 12541440.

The previous prime is 49311907. The next prime is 49311949. The reversal of 49311930 is 3911394.

49311930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57384 + ... + 58236.

It is an arithmetic number, because the mean of its divisors is an integer number (1936872).

Almost surely, 2^49311930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49311930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61979904).

49311930 is an abundant number, since it is smaller than the sum of its proper divisors (74647878).

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

49311930 is a wasteful number, since it uses less digits than its factorization.

49311930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 49311930 is about 7022.2453674021. The cubic root of 49311930 is about 366.7054238187.

The spelling of 49311930 in words is "forty-nine million, three hundred eleven thousand, nine hundred thirty".