408990544 has 40 divisors (see below), whose sum is σ = 812954912. Its totient is φ = 199221120.

The previous prime is 408990541. The next prime is 408990553. The reversal of 408990544 is 445099804.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 408990544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408990541) 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 7 ways as a sum of consecutive naturals, for example, 503899 + ... + 504709.

Almost surely, 2^408990544 is an apocalyptic number.

It is an amenable number.

408990544 is a deficient number, since it is larger than the sum of its proper divisors (403964368).

408990544 is a wasteful number, since it uses less digits than its factorization.

408990544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 408990544 is about 20223.5146302516. The cubic root of 408990544 is about 742.2856914555.

The spelling of 408990544 in words is "four hundred eight million, nine hundred ninety thousand, five hundred forty-four".