408020832 has 36 divisors (see below), whose sum is σ = 1160310060. Its totient is φ = 136006848.

The previous prime is 408020827. The next prime is 408020843. The reversal of 408020832 is 238020804.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 408020796 and 408020805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708082 + ... + 708657.

It is an arithmetic number, because the mean of its divisors is an integer number (32230835).

Almost surely, 2^408020832 is an apocalyptic number.

It is an amenable number.

408020832 is an abundant number, since it is smaller than the sum of its proper divisors (752289228).

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

408020832 is a wasteful number, since it uses less digits than its factorization.

408020832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416755 (or 1416744 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 408020832 is about 20199.5255389823. The cubic root of 408020832 is about 741.6985768425.

The spelling of 408020832 in words is "four hundred eight million, twenty thousand, eight hundred thirty-two".