44904889 has 4 divisors (see below), whose sum is σ = 45367924. Its totient is φ = 44441856.

The previous prime is 44904877. The next prime is 44904907. The reversal of 44904889 is 98840944.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30525625 + 14379264 = 5525^2 + 3792^2 .

It is a cyclic number.

It is not a de Polignac number, because 44904889 - 2¹³ = 44896697 is a prime.

It is a super-2 number, since 2×44904889² = 4032898112204642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44904829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231372 + ... + 231565.

It is an arithmetic number, because the mean of its divisors is an integer number (11341981).

Almost surely, 2^44904889 is an apocalyptic number.

It is an amenable number.

44904889 is a deficient number, since it is larger than the sum of its proper divisors (463035).

44904889 is an equidigital number, since it uses as much as digits as its factorization.

44904889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463034.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 44904889 is about 6701.1110272850. Note that the first 3 decimals coincide. The cubic root of 44904889 is about 355.4385613377.

The spelling of 44904889 in words is "forty-four million, nine hundred four thousand, eight hundred eighty-nine".