408665080 has 32 divisors (see below), whose sum is σ = 920984400. Its totient is φ = 163201536.

The previous prime is 408665039. The next prime is 408665087. The reversal of 408665080 is 80566804.

It is a super-2 number, since 2×408665080² = 334014295222812800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408665087) 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, 17776 + ... + 33664.

Almost surely, 2^408665080 is an apocalyptic number.

408665080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

408665080 is an abundant number, since it is smaller than the sum of its proper divisors (512319320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408665080 is a wasteful number, since it uses less digits than its factorization.

408665080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16543 (or 16539 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 408665080 is about 20215.4663562333. The cubic root of 408665080 is about 742.0887420108.

The spelling of 408665080 in words is "four hundred eight million, six hundred sixty-five thousand, eighty".