408044889 has 24 divisors (see below), whose sum is σ = 674411712. Its totient is φ = 232886880.

The previous prime is 408044887. The next prime is 408044891. The reversal of 408044889 is 988440804.

It is an interprime number because it is at equal distance from previous prime (408044887) and next prime (408044891).

It is not a de Polignac number, because 408044889 - 2¹ = 408044887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (408044887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55842 + ... + 62724.

It is an arithmetic number, because the mean of its divisors is an integer number (28100488).

Almost surely, 2^408044889 is an apocalyptic number.

It is an amenable number.

408044889 is a deficient number, since it is larger than the sum of its proper divisors (266366823).

408044889 is a wasteful number, since it uses less digits than its factorization.

408044889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837 (or 7834 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 408044889 is about 20200.1210144890. The cubic root of 408044889 is about 741.7131534610.

The spelling of 408044889 in words is "four hundred eight million, forty-four thousand, eight hundred eighty-nine".