408255888 has 80 divisors (see below), whose sum is σ = 1158497280. Its totient is φ = 123311232.

The previous prime is 408255829. The next prime is 408255899. The reversal of 408255888 is 888552804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11245 + ... + 30707.

It is an arithmetic number, because the mean of its divisors is an integer number (14481216).

Almost surely, 2^408255888 is an apocalyptic number.

408255888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408255888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579248640).

408255888 is an abundant number, since it is smaller than the sum of its proper divisors (750241392).

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

408255888 is a wasteful number, since it uses less digits than its factorization.

408255888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19516 (or 19510 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 48.

The square root of 408255888 is about 20205.3430557365. The cubic root of 408255888 is about 741.8409774416.

The spelling of 408255888 in words is "four hundred eight million, two hundred fifty-five thousand, eight hundred eighty-eight".