49751840 has 24 divisors (see below), whose sum is σ = 117539100. Its totient is φ = 19900672.

The previous prime is 49751837. The next prime is 49751857. The reversal of 49751840 is 4815794.

49751840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49168144 + 583696 = 7012^2 + 764^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49751794 and 49751803.

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 3 ways as a sum of consecutive naturals, for example, 155315 + ... + 155634.

Almost surely, 2^49751840 is an apocalyptic number.

49751840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49751840 is an abundant number, since it is smaller than the sum of its proper divisors (67787260).

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

49751840 is a wasteful number, since it uses less digits than its factorization.

49751840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310964 (or 310956 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 49751840 is about 7053.4984227687. The cubic root of 49751840 is about 367.7926525694.

The spelling of 49751840 in words is "forty-nine million, seven hundred fifty-one thousand, eight hundred forty".