47438316 has 36 divisors (see below), whose sum is σ = 124051200. Its totient is φ = 15267168.

The previous prime is 47438309. The next prime is 47438317. The reversal of 47438316 is 61383474.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47438317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21676 + ... + 23763.

Almost surely, 2^47438316 is an apocalyptic number.

It is an amenable number.

47438316 is an abundant number, since it is smaller than the sum of its proper divisors (76612884).

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

47438316 is a wasteful number, since it uses less digits than its factorization.

47438316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45478 (or 45473 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 47438316 is about 6887.5478945703. The cubic root of 47438316 is about 362.0009869432. Note that the first 3 decimals are identical.

The spelling of 47438316 in words is "forty-seven million, four hundred thirty-eight thousand, three hundred sixteen".