408703680 has 672 divisors, whose sum is σ = 1863912960. Its totient is φ = 79626240.

The previous prime is 408703663. The next prime is 408703693. The reversal of 408703680 is 86307804.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 4213392 + ... + 4213488.

It is an arithmetic number, because the mean of its divisors is an integer number (2773680).

Almost surely, 2^408703680 is an apocalyptic number.

408703680 is a gapful number since it is divisible by the number (40) 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 408703680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931956480).

408703680 is an abundant number, since it is smaller than the sum of its proper divisors (1455209280).

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

408703680 is a wasteful number, since it uses less digits than its factorization.

408703680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 408703680 is about 20216.4210482469. The cubic root of 408703680 is about 742.1121056607.

The spelling of 408703680 in words is "four hundred eight million, seven hundred three thousand, six hundred eighty".