408488840 has 32 divisors (see below), whose sum is σ = 919788480. Its totient is φ = 163273152.

The previous prime is 408488837. The next prime is 408488849. The reversal of 408488840 is 48884804.

It is a junction number, because it is equal to n+sod(n) for n = 408488791 and 408488800.

It is not an unprimeable number, because it can be changed into a prime (408488849) 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, 65957 + ... + 71883.

It is an arithmetic number, because the mean of its divisors is an integer number (28743390).

Almost surely, 2^408488840 is an apocalyptic number.

408488840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

408488840 is an abundant number, since it is smaller than the sum of its proper divisors (511299640).

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

408488840 is a wasteful number, since it uses less digits than its factorization.

408488840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661 (or 7657 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The square root of 408488840 is about 20211.1068474737. The cubic root of 408488840 is about 741.9820494879.

The spelling of 408488840 in words is "four hundred eight million, four hundred eighty-eight thousand, eight hundred forty".