986257404 has 96 divisors (see below), whose sum is σ = 2885702400. Its totient is φ = 288550080.

The previous prime is 986257399. The next prime is 986257427. The reversal of 986257404 is 404752689.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 986257404.

It is a congruent number.

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, 20139 + ... + 48765.

It is an arithmetic number, because the mean of its divisors is an integer number (30059400).

Almost surely, 2^986257404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 986257404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442851200).

986257404 is an abundant number, since it is smaller than the sum of its proper divisors (1899444996).

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

986257404 is a wasteful number, since it uses less digits than its factorization.

986257404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28680 (or 28672 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 986257404 is about 31404.7353754175. The cubic root of 986257404 is about 995.3979886461.

The spelling of 986257404 in words is "nine hundred eighty-six million, two hundred fifty-seven thousand, four hundred four".