47315232 has 96 divisors (see below), whose sum is σ = 144063360. Its totient is φ = 15079680.

The previous prime is 47315231. The next prime is 47315239. The reversal of 47315232 is 23251374.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 47315196 and 47315205.

It is not an unprimeable number, because it can be changed into a prime (47315231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18682 + ... + 21062.

It is an arithmetic number, because the mean of its divisors is an integer number (1500660).

Almost surely, 2^47315232 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 47315232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72031680).

47315232 is an abundant number, since it is smaller than the sum of its proper divisors (96748128).

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

47315232 is a wasteful number, since it uses less digits than its factorization.

47315232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423 (or 2409 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 47315232 is about 6878.6068356899. The cubic root of 47315232 is about 361.6876318011.

The spelling of 47315232 in words is "forty-seven million, three hundred fifteen thousand, two hundred thirty-two".