44574561 has 12 divisors (see below), whose sum is σ = 68173092. Its totient is φ = 27968256.

The previous prime is 44574557. The next prime is 44574571. The reversal of 44574561 is 16547544.

44574561 is a `hidden beast` number, since 44 + 57 + 4 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21678336 + 22896225 = 4656^2 + 4785^2 .

It is not a de Polignac number, because 44574561 - 2² = 44574557 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (44574511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145516 + ... + 145821.

It is an arithmetic number, because the mean of its divisors is an integer number (5681091).

Almost surely, 2^44574561 is an apocalyptic number.

It is an amenable number.

44574561 is a deficient number, since it is larger than the sum of its proper divisors (23598531).

44574561 is a wasteful number, since it uses less digits than its factorization.

44574561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291360 (or 291357 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 44574561 is about 6676.4182762916. The cubic root of 44574561 is about 354.5648599563.

The spelling of 44574561 in words is "forty-four million, five hundred seventy-four thousand, five hundred sixty-one".