408090628 has 12 divisors (see below), whose sum is σ = 779082192. Its totient is φ = 185495720.

The previous prime is 408090623. The next prime is 408090643. The reversal of 408090628 is 826090804.

It is a super-2 number, since 2×408090628² = 333075921322868768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (408090623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4637350 + ... + 4637437.

It is an arithmetic number, because the mean of its divisors is an integer number (64923516).

Almost surely, 2^408090628 is an apocalyptic number.

It is an amenable number.

408090628 is a deficient number, since it is larger than the sum of its proper divisors (370991564).

408090628 is a wasteful number, since it uses less digits than its factorization.

408090628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9274802 (or 9274800 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 408090628 is about 20201.2531294472. The cubic root of 408090628 is about 741.7408660577.

The spelling of 408090628 in words is "four hundred eight million, ninety thousand, six hundred twenty-eight".