408530490 has 32 divisors (see below), whose sum is σ = 995112000. Its totient is φ = 107314944.

The previous prime is 408530477. The next prime is 408530491. The reversal of 408530490 is 94035804.

It is a super-2 number, since 2×408530490² = 333794322519280200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (408530491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99615 + ... + 103634.

It is an arithmetic number, because the mean of its divisors is an integer number (31097250).

Almost surely, 2^408530490 is an apocalyptic number.

408530490 is an abundant number, since it is smaller than the sum of its proper divisors (586581510).

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

408530490 is a wasteful number, since it uses less digits than its factorization.

408530490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203326.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 408530490 is about 20212.1371952597. The cubic root of 408530490 is about 742.0072664168.

The spelling of 408530490 in words is "four hundred eight million, five hundred thirty thousand, four hundred ninety".