45445568 has 84 divisors (see below), whose sum is σ = 109161072. Its totient is φ = 18385920.

The previous prime is 45445559. The next prime is 45445577. The reversal of 45445568 is 86554454.

It is an interprime number because it is at equal distance from previous prime (45445559) and next prime (45445577).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161588 + ... + 161868.

Almost surely, 2^45445568 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 45445568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54580536).

45445568 is an abundant number, since it is smaller than the sum of its proper divisors (63715504).

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

45445568 is a wasteful number, since it uses less digits than its factorization.

45445568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 309 counting only the distinct ones).

The product of its digits is 384000, while the sum is 41.

The square root of 45445568 is about 6741.3328059072. The cubic root of 45445568 is about 356.8594309362.

The spelling of 45445568 in words is "forty-five million, four hundred forty-five thousand, five hundred sixty-eight".