47549970 has 256 divisors, whose sum is σ = 154828800. Its totient is φ = 10264320.

The previous prime is 47549963. The next prime is 47550011. The reversal of 47549970 is 7994574.

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 127 ways as a sum of consecutive naturals, for example, 1533855 + ... + 1533885.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^47549970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47549970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77414400).

47549970 is an abundant number, since it is smaller than the sum of its proper divisors (107278830).

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

47549970 is a wasteful number, since it uses less digits than its factorization.

47549970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 47549970 is about 6895.6486279392. The cubic root of 47549970 is about 362.2847743409.

The spelling of 47549970 in words is "forty-seven million, five hundred forty-nine thousand, nine hundred seventy".