981516942 has 36 divisors (see below), whose sum is σ = 2473825536. Its totient is φ = 280433160.

The previous prime is 981516937. The next prime is 981516961. The reversal of 981516942 is 249615189.

981516942 is a `hidden beast` number, since 98 + 1 + 516 + 9 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 555534 + ... + 557297.

It is an arithmetic number, because the mean of its divisors is an integer number (68717376).

Almost surely, 2^981516942 is an apocalyptic number.

981516942 is an abundant number, since it is smaller than the sum of its proper divisors (1492308594).

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

981516942 is a wasteful number, since it uses less digits than its factorization.

981516942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112853 (or 1112843 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 981516942 is about 31329.1707837919. The cubic root of 981516942 is about 993.8006278704.

The spelling of 981516942 in words is "nine hundred eighty-one million, five hundred sixteen thousand, nine hundred forty-two".