49978800 has 90 divisors (see below), whose sum is σ = 173452812. Its totient is φ = 13326720.

The previous prime is 49978787. The next prime is 49978811. The reversal of 49978800 is 887994.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3342 + ... + 10541.

Almost surely, 2^49978800 is an apocalyptic number.

49978800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49978800 is an abundant number, since it is smaller than the sum of its proper divisors (123474012).

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

49978800 is a wasteful number, since it uses less digits than its factorization.

49978800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13907 (or 13893 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 49978800 is about 7069.5685865546. The cubic root of 49978800 is about 368.3510748582.

The spelling of 49978800 in words is "forty-nine million, nine hundred seventy-eight thousand, eight hundred".