49901904 has 240 divisors, whose sum is σ = 167905920. Its totient is φ = 13685760.

The previous prime is 49901899. The next prime is 49901933. The reversal of 49901904 is 40910994.

49901904 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 (36).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 818034 + ... + 818094.

It is an arithmetic number, because the mean of its divisors is an integer number (699608).

Almost surely, 2^49901904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49901904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83952960).

49901904 is an abundant number, since it is smaller than the sum of its proper divisors (118004016).

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

49901904 is a wasteful number, since it uses less digits than its factorization.

49901904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 49901904 is about 7064.1279716608. The cubic root of 49901904 is about 368.1620662971.

It can be divided in two parts, 49901 and 904, that added together give a palindrome (50805).

The spelling of 49901904 in words is "forty-nine million, nine hundred one thousand, nine hundred four".