28044465 has 8 divisors (see below), whose sum is σ = 44871168. Its totient is φ = 14957040.

The previous prime is 28044461. The next prime is 28044493. The reversal of 28044465 is 56444082.

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

It is not a de Polignac number, because 28044465 - 2² = 28044461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28044461) 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, 934801 + ... + 934830.

It is an arithmetic number, because the mean of its divisors is an integer number (5608896).

Almost surely, 2^28044465 is an apocalyptic number.

It is an amenable number.

28044465 is a deficient number, since it is larger than the sum of its proper divisors (16826703).

28044465 is a wasteful number, since it uses less digits than its factorization.

28044465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869639.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 28044465 is about 5295.7025029735. The cubic root of 28044465 is about 303.8195525666.

The spelling of 28044465 in words is "twenty-eight million, forty-four thousand, four hundred sixty-five".