45440564 has 24 divisors (see below), whose sum is σ = 88593960. Its totient is φ = 20248704.

The previous prime is 45440543. The next prime is 45440567. The reversal of 45440564 is 46504454.

It can be written as a sum of positive squares in 4 ways, for example, as 550564 + 44890000 = 742^2 + 6700^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45440564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45440567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13559 + ... + 16574.

It is an arithmetic number, because the mean of its divisors is an integer number (3691415).

Almost surely, 2^45440564 is an apocalyptic number.

It is an amenable number.

45440564 is a deficient number, since it is larger than the sum of its proper divisors (43153396).

45440564 is a wasteful number, since it uses less digits than its factorization.

45440564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30179 (or 30177 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 45440564 is about 6740.9616524647. The cubic root of 45440564 is about 356.8463325549.

The spelling of 45440564 in words is "forty-five million, four hundred forty thousand, five hundred sixty-four".