989157204 has 96 divisors (see below), whose sum is σ = 2959523840. Its totient is φ = 279850464.

The previous prime is 989157181. The next prime is 989157241. The reversal of 989157204 is 402751989.

It is a self number, because there is not a number n which added to its sum of digits gives 989157204.

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, 71517 + ... + 84219.

Almost surely, 2^989157204 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 989157204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479761920).

989157204 is an abundant number, since it is smaller than the sum of its proper divisors (1970366636).

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

989157204 is a wasteful number, since it uses less digits than its factorization.

989157204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12826 (or 12818 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 989157204 is about 31450.8696859085. The cubic root of 989157204 is about 996.3725924913.

The spelling of 989157204 in words is "nine hundred eighty-nine million, one hundred fifty-seven thousand, two hundred four".