981258220 has 24 divisors (see below), whose sum is σ = 2061234000. Its totient is φ = 392390592.

The previous prime is 981258199. The next prime is 981258233. The reversal of 981258220 is 22852189.

It is a self number, because there is not a number n which added to its sum of digits gives 981258220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122086 + ... + 129874.

It is an arithmetic number, because the mean of its divisors is an integer number (85884750).

Almost surely, 2^981258220 is an apocalyptic number.

It is an amenable number.

981258220 is an abundant number, since it is smaller than the sum of its proper divisors (1079975780).

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

981258220 is a wasteful number, since it uses less digits than its factorization.

981258220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14097 (or 14095 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 981258220 is about 31325.0414205632. The cubic root of 981258220 is about 993.7133002282.

The spelling of 981258220 in words is "nine hundred eighty-one million, two hundred fifty-eight thousand, two hundred twenty".