985402408 has 16 divisors (see below), whose sum is σ = 1848423060. Its totient is φ = 492489600.

The previous prime is 985402403. The next prime is 985402417. The reversal of 985402408 is 804204589.

It can be written as a sum of positive squares in 2 ways, for example, as 981067684 + 4334724 = 31322^2 + 2082^2 .

It is not an unprimeable number, because it can be changed into a prime (985402403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5703 + ... + 44758.

Almost surely, 2^985402408 is an apocalyptic number.

It is an amenable number.

985402408 is a deficient number, since it is larger than the sum of its proper divisors (863020652).

985402408 is a wasteful number, since it uses less digits than its factorization.

985402408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52908 (or 52904 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 985402408 is about 31391.1198908226. The cubic root of 985402408 is about 995.1102654666.

The spelling of 985402408 in words is "nine hundred eighty-five million, four hundred two thousand, four hundred eight".