981799242 has 16 divisors (see below), whose sum is σ = 2000648160. Its totient is φ = 321091472.

The previous prime is 981799223. The next prime is 981799267. The reversal of 981799242 is 242997189.

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, 1543392 + ... + 1544027.

It is an arithmetic number, because the mean of its divisors is an integer number (125040510).

Almost surely, 2^981799242 is an apocalyptic number.

981799242 is an abundant number, since it is smaller than the sum of its proper divisors (1018848918).

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

981799242 is a wasteful number, since it uses less digits than its factorization.

981799242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087477.

The product of its digits is 653184, while the sum is 51.

The square root of 981799242 is about 31333.6758456457. The cubic root of 981799242 is about 993.8958963990.

The spelling of 981799242 in words is "nine hundred eighty-one million, seven hundred ninety-nine thousand, two hundred forty-two".