44400073 has 16 divisors (see below), whose sum is σ = 49124880. Its totient is φ = 39940096.

The previous prime is 44400049. The next prime is 44400113. The reversal of 44400073 is 37000444.

It can be written as a sum of positive squares in 8 ways, for example, as 1327104 + 43072969 = 1152^2 + 6563^2 .

It is a cyclic number.

It is not a de Polignac number, because 44400073 - 2²⁵ = 10845641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44400023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55311 + ... + 56107.

It is an arithmetic number, because the mean of its divisors is an integer number (3070305).

Almost surely, 2^44400073 is an apocalyptic number.

It is an amenable number.

44400073 is a deficient number, since it is larger than the sum of its proper divisors (4724807).

44400073 is a wasteful number, since it uses less digits than its factorization.

44400073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 44400073 is about 6663.3379773204. The cubic root of 44400073 is about 354.1016045714.

The spelling of 44400073 in words is "forty-four million, four hundred thousand, seventy-three".