408789368 has 48 divisors (see below), whose sum is σ = 836412480. Its totient is φ = 187209984.

The previous prime is 408789317. The next prime is 408789379. The reversal of 408789368 is 863987804.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184121 + ... + 186327.

It is an arithmetic number, because the mean of its divisors is an integer number (17425260).

Almost surely, 2^408789368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408789368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418206240).

408789368 is an abundant number, since it is smaller than the sum of its proper divisors (427623112).

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

408789368 is a wasteful number, since it uses less digits than its factorization.

408789368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 408789368 is about 20218.5402044757. The cubic root of 408789368 is about 742.1639652856.

The spelling of 408789368 in words is "four hundred eight million, seven hundred eighty-nine thousand, three hundred sixty-eight".