981846920 has 32 divisors (see below), whose sum is σ = 2256163200. Its totient is φ = 384381888.

The previous prime is 981846919. The next prime is 981846937. The reversal of 981846920 is 29648189.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 259250 + ... + 263009.

It is an arithmetic number, because the mean of its divisors is an integer number (70505100).

Almost surely, 2^981846920 is an apocalyptic number.

It is an amenable number.

981846920 is an abundant number, since it is smaller than the sum of its proper divisors (1274316280).

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

981846920 is a wasteful number, since it uses less digits than its factorization.

981846920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522317 (or 522313 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 981846920 is about 31334.4366472416. The cubic root of 981846920 is about 993.9119846173.

The spelling of 981846920 in words is "nine hundred eighty-one million, eight hundred forty-six thousand, nine hundred twenty".