981258804 has 18 divisors (see below), whose sum is σ = 2480404290. Its totient is φ = 327086256.

The previous prime is 981258791. The next prime is 981258823. The reversal of 981258804 is 408852189.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 531394704 + 449864100 = 23052^2 + 21210^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 981258804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13628559 + ... + 13628630.

Almost surely, 2^981258804 is an apocalyptic number.

It is an amenable number.

981258804 is an abundant number, since it is smaller than the sum of its proper divisors (1499145486).

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

981258804 is a wasteful number, since it uses less digits than its factorization.

981258804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27257199 (or 27257194 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 981258804 is about 31325.0507421776. The cubic root of 981258804 is about 993.7134973657.

It can be divided in two parts, 98125 and 8804, that added together give a square (106929 = 327²).

The spelling of 981258804 in words is "nine hundred eighty-one million, two hundred fifty-eight thousand, eight hundred four".