47440380 has 48 divisors (see below), whose sum is σ = 143053344. Its totient is φ = 11677440.

The previous prime is 47440373. The next prime is 47440391. The reversal of 47440380 is 8304474.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29631 + ... + 31190.

It is an arithmetic number, because the mean of its divisors is an integer number (2980278).

Almost surely, 2^47440380 is an apocalyptic number.

It is an amenable number.

47440380 is an abundant number, since it is smaller than the sum of its proper divisors (95612964).

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

47440380 is a wasteful number, since it uses less digits than its factorization.

47440380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60846 (or 60844 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 47440380 is about 6887.6977285592. The cubic root of 47440380 is about 362.0062369834.

The spelling of 47440380 in words is "forty-seven million, four hundred forty thousand, three hundred eighty".