49491888 has 20 divisors (see below), whose sum is σ = 127854168. Its totient is φ = 16497280.

The previous prime is 49491859. The next prime is 49491901. The reversal of 49491888 is 88819494.

It is a self number, because there is not a number n which added to its sum of digits gives 49491888.

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, 515493 + ... + 515588.

Almost surely, 2^49491888 is an apocalyptic number.

49491888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49491888 is an abundant number, since it is smaller than the sum of its proper divisors (78362280).

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

49491888 is a wasteful number, since it uses less digits than its factorization.

49491888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031092 (or 1031086 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 49491888 is about 7035.0471213774. The cubic root of 49491888 is about 367.1509648260.

The spelling of 49491888 in words is "forty-nine million, four hundred ninety-one thousand, eight hundred eighty-eight".