44400065 has 8 divisors (see below), whose sum is σ = 53516160. Its totient is φ = 35362672.

The previous prime is 44400049. The next prime is 44400113. The reversal of 44400065 is 56000444.

It is a happy number.

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 44400065 - 2⁴ = 44400049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44400065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18425 + ... + 20694.

It is an arithmetic number, because the mean of its divisors is an integer number (6689520).

Almost surely, 2^44400065 is an apocalyptic number.

It is an amenable number.

44400065 is a deficient number, since it is larger than the sum of its proper divisors (9116095).

44400065 is a wasteful number, since it uses less digits than its factorization.

44400065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39351.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 44400065 is about 6663.3373770206. The cubic root of 44400065 is about 354.1015833041.

The spelling of 44400065 in words is "forty-four million, four hundred thousand, sixty-five".