45645660 has 96 divisors (see below), whose sum is σ = 143277120. Its totient is φ = 12063744.

The previous prime is 45645653. The next prime is 45645689. The reversal of 45645660 is 6654654.

It is a happy number.

45645660 is a `hidden beast` number, since 4 + 5 + 645 + 6 + 6 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73672 + ... + 74288.

It is an arithmetic number, because the mean of its divisors is an integer number (1492470).

Almost surely, 2^45645660 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 45645660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71638560).

45645660 is an abundant number, since it is smaller than the sum of its proper divisors (97631460).

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

45645660 is a wasteful number, since it uses less digits than its factorization.

45645660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 45645660 is about 6756.1571917770. The cubic root of 45645660 is about 357.3824021902.

The spelling of 45645660 in words is "forty-five million, six hundred forty-five thousand, six hundred sixty".