981642948 has 48 divisors (see below), whose sum is σ = 2690942016. Its totient is φ = 274584960.

The previous prime is 981642901. The next prime is 981642979. The reversal of 981642948 is 849246189.

It is a self number, because there is not a number n which added to its sum of digits gives 981642948.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284311 + ... + 287742.

It is an arithmetic number, because the mean of its divisors is an integer number (56061292).

Almost surely, 2^981642948 is an apocalyptic number.

It is an amenable number.

981642948 is an abundant number, since it is smaller than the sum of its proper divisors (1709299068).

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

981642948 is a wasteful number, since it uses less digits than its factorization.

981642948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572084 (or 572082 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 981642948 is about 31331.1817204522. The cubic root of 981642948 is about 993.8431537057.

The spelling of 981642948 in words is "nine hundred eighty-one million, six hundred forty-two thousand, nine hundred forty-eight".