981230904 has 24 divisors (see below), whose sum is σ = 2657500560. Its totient is φ = 327076944.

The previous prime is 981230903. The next prime is 981230909. The reversal of 981230904 is 409032189.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981230903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6814032 + ... + 6814175.

It is an arithmetic number, because the mean of its divisors is an integer number (110729190).

Almost surely, 2^981230904 is an apocalyptic number.

It is an amenable number.

981230904 is an abundant number, since it is smaller than the sum of its proper divisors (1676269656).

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

981230904 is a wasteful number, since it uses less digits than its factorization.

981230904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628219 (or 13628212 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 981230904 is about 31324.6054085283. The cubic root of 981230904 is about 993.7040792356.

The spelling of 981230904 in words is "nine hundred eighty-one million, two hundred thirty thousand, nine hundred four".