49799880 has 128 divisors (see below), whose sum is σ = 178819200. Its totient is φ = 12254976.

The previous prime is 49799863. The next prime is 49799887. The reversal of 49799880 is 8899794.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (49799887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12267 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (1397025).

Almost surely, 2^49799880 is an apocalyptic number.

49799880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49799880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89409600).

49799880 is an abundant number, since it is smaller than the sum of its proper divisors (129019320).

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

49799880 is a wasteful number, since it uses less digits than its factorization.

49799880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580 (or 3570 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 49799880 is about 7056.9030034428. The cubic root of 49799880 is about 367.9109937547.

The spelling of 49799880 in words is "forty-nine million, seven hundred ninety-nine thousand, eight hundred eighty".