47928780 has 192 divisors, whose sum is σ = 165473280. Its totient is φ = 11455488.

The previous prime is 47928779. The next prime is 47928809. The reversal of 47928780 is 8782974.

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 63 ways as a sum of consecutive naturals, for example, 211027 + ... + 211253.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^47928780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47928780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

47928780 is an abundant number, since it is smaller than the sum of its proper divisors (117544500).

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

47928780 is a wasteful number, since it uses less digits than its factorization.

47928780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 47928780 is about 6923.0614615212. The cubic root of 47928780 is about 363.2442860830.

The spelling of 47928780 in words is "forty-seven million, nine hundred twenty-eight thousand, seven hundred eighty".