45315684 has 72 divisors (see below), whose sum is σ = 121998240. Its totient is φ = 14141952.

The previous prime is 45315671. The next prime is 45315709. The reversal of 45315684 is 48651354.

It is a happy number.

It is a super-2 number, since 2×45315684² = 4107022432775712, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66007 + ... + 66689.

It is an arithmetic number, because the mean of its divisors is an integer number (1694420).

Almost surely, 2^45315684 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 45315684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60999120).

45315684 is an abundant number, since it is smaller than the sum of its proper divisors (76682556).

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

45315684 is a wasteful number, since it uses less digits than its factorization.

45315684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 804 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 45315684 is about 6731.6925063464. The cubic root of 45315684 is about 356.5191369742.

The spelling of 45315684 in words is "forty-five million, three hundred fifteen thousand, six hundred eighty-four".