408401285208 has 64 divisors (see below), whose sum is σ = 1168431644160. Its totient is φ = 116528998656.

The previous prime is 408401285207. The next prime is 408401285213. The reversal of 408401285208 is 802582104804.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 408401285208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408401285203) 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, 1511085 + ... + 1760732.

It is an arithmetic number, because the mean of its divisors is an integer number (18256744440).

Almost surely, 2^408401285208 is an apocalyptic number.

It is an amenable number.

408401285208 is an abundant number, since it is smaller than the sum of its proper divisors (760030358952).

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

408401285208 is a wasteful number, since it uses less digits than its factorization.

408401285208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272576 (or 3272572 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 42.

The spelling of 408401285208 in words is "four hundred eight billion, four hundred one million, two hundred eighty-five thousand, two hundred eight".