47831740 has 48 divisors (see below), whose sum is σ = 115355520. Its totient is φ = 16476480.

The previous prime is 47831723. The next prime is 47831803. The reversal of 47831740 is 4713874.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47831696 and 47831705.

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, 1542 + ... + 9901.

It is an arithmetic number, because the mean of its divisors is an integer number (2403240).

Almost surely, 2^47831740 is an apocalyptic number.

It is an amenable number.

47831740 is an abundant number, since it is smaller than the sum of its proper divisors (67523780).

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

47831740 is a wasteful number, since it uses less digits than its factorization.

47831740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11482 (or 11480 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 47831740 is about 6916.0494503727. The cubic root of 47831740 is about 362.9989704175.

The spelling of 47831740 in words is "forty-seven million, eight hundred thirty-one thousand, seven hundred forty".