6408090 has 48 divisors (see below), whose sum is σ = 17945928. Its totient is φ = 1577088.

The previous prime is 6408047. The next prime is 6408091. The reversal of 6408090 is 908046.

It can be written as a sum of positive squares in 4 ways, for example, as 5919489 + 488601 = 2433^2 + 699^2 .

It is not an unprimeable number, because it can be changed into a prime (6408091) 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, 1569 + ... + 3908.

Almost surely, 2^6408090 is an apocalyptic number.

6408090 is an abundant number, since it is smaller than the sum of its proper divisors (11537838).

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

6408090 is a wasteful number, since it uses less digits than its factorization.

6408090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503 (or 5500 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 6408090 is about 2531.4205498099. The cubic root of 6408090 is about 185.7417505169.

The spelling of 6408090 in words is "six million, four hundred eight thousand, ninety".