49415840 has 24 divisors (see below), whose sum is σ = 116745300. Its totient is φ = 19766272.

The previous prime is 49415833. The next prime is 49415851. The reversal of 49415840 is 4851494.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48832144 + 583696 = 6988^2 + 764^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49415840.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154265 + ... + 154584.

Almost surely, 2^49415840 is an apocalyptic number.

49415840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49415840 is an abundant number, since it is smaller than the sum of its proper divisors (67329460).

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

49415840 is a wasteful number, since it uses less digits than its factorization.

49415840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308864 (or 308856 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 49415840 is about 7029.6401045857. The cubic root of 49415840 is about 366.9628167552.

The spelling of 49415840 in words is "forty-nine million, four hundred fifteen thousand, eight hundred forty".