981595488 has 48 divisors (see below), whose sum is σ = 2581225920. Its totient is φ = 326622336.

The previous prime is 981595429. The next prime is 981595513. The reversal of 981595488 is 884595189.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 47643 + ... + 65061.

It is an arithmetic number, because the mean of its divisors is an integer number (53775540).

Almost surely, 2^981595488 is an apocalyptic number.

It is an amenable number.

981595488 is an abundant number, since it is smaller than the sum of its proper divisors (1599630432).

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

981595488 is a wasteful number, since it uses less digits than its factorization.

981595488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18019 (or 18011 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 57.

The square root of 981595488 is about 31330.4243188630. The cubic root of 981595488 is about 993.8271368311.

The spelling of 981595488 in words is "nine hundred eighty-one million, five hundred ninety-five thousand, four hundred eighty-eight".