981974382 has 16 divisors (see below), whose sum is σ = 1965290880. Its totient is φ = 327101112.

The previous prime is 981974369. The next prime is 981974393. The reversal of 981974382 is 283479189.

It is a super-3 number, since 3×981974382³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46282 + ... + 64077.

It is an arithmetic number, because the mean of its divisors is an integer number (122830680).

Almost surely, 2^981974382 is an apocalyptic number.

981974382 is an abundant number, since it is smaller than the sum of its proper divisors (983316498).

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

981974382 is a wasteful number, since it uses less digits than its factorization.

981974382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111847.

The product of its digits is 870912, while the sum is 51.

The square root of 981974382 is about 31336.4704777038. The cubic root of 981974382 is about 993.9549921796.

The spelling of 981974382 in words is "nine hundred eighty-one million, nine hundred seventy-four thousand, three hundred eighty-two".