44402561 has 8 divisors (see below), whose sum is σ = 51030720. Its totient is φ = 37845648.

The previous prime is 44402557. The next prime is 44402591. The reversal of 44402561 is 16520444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44402561 - 2² = 44402557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44402561.

It is not an unprimeable number, because it can be changed into a prime (44402551) 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 7 ways as a sum of consecutive naturals, for example, 16466 + ... + 18971.

It is an arithmetic number, because the mean of its divisors is an integer number (6378840).

Almost surely, 2^44402561 is an apocalyptic number.

It is an amenable number.

44402561 is a deficient number, since it is larger than the sum of its proper divisors (6628159).

44402561 is a wasteful number, since it uses less digits than its factorization.

44402561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35623.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 44402561 is about 6663.5246679216. The cubic root of 44402561 is about 354.1082185871.

The spelling of 44402561 in words is "forty-four million, four hundred two thousand, five hundred sixty-one".