408535842 has 64 divisors (see below), whose sum is σ = 965188224. Its totient is φ = 113648640.

The previous prime is 408535811. The next prime is 408535859. The reversal of 408535842 is 248535804.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 408535842.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167818 + ... + 170234.

It is an arithmetic number, because the mean of its divisors is an integer number (15081066).

Almost surely, 2^408535842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408535842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482594112).

408535842 is an abundant number, since it is smaller than the sum of its proper divisors (556652382).

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

408535842 is a wasteful number, since it uses less digits than its factorization.

408535842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 408535842 is about 20212.2695905235. The cubic root of 408535842 is about 742.0105066527.

The spelling of 408535842 in words is "four hundred eight million, five hundred thirty-five thousand, eight hundred forty-two".