981297842 has 16 divisors (see below), whose sum is σ = 1683115200. Its totient is φ = 420333648.

The previous prime is 981297841. The next prime is 981297847. The reversal of 981297842 is 248792189.

It is not an unprimeable number, because it can be changed into a prime (981297841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10409 + ... + 45507.

It is an arithmetic number, because the mean of its divisors is an integer number (105194700).

Almost surely, 2^981297842 is an apocalyptic number.

981297842 is a deficient number, since it is larger than the sum of its proper divisors (701817358).

981297842 is a wasteful number, since it uses less digits than its factorization.

981297842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37105.

The product of its digits is 580608, while the sum is 50.

The square root of 981297842 is about 31325.6738475009. The cubic root of 981297842 is about 993.7266750218.

The spelling of 981297842 in words is "nine hundred eighty-one million, two hundred ninety-seven thousand, eight hundred forty-two".