331982090 has 16 divisors (see below), whose sum is σ = 651892320. Its totient is φ = 120720720.

The previous prime is 331982087. The next prime is 331982113. The reversal of 331982090 is 90289133.

It is a super-2 number, since 2×331982090² = 220424216161536200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 331982090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1508900 + ... + 1509119.

It is an arithmetic number, because the mean of its divisors is an integer number (40743270).

Almost surely, 2^331982090 is an apocalyptic number.

331982090 is a deficient number, since it is larger than the sum of its proper divisors (319910230).

331982090 is a wasteful number, since it uses less digits than its factorization.

331982090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018037.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 331982090 is about 18220.3756821861. The cubic root of 331982090 is about 692.4231057127.

The spelling of 331982090 in words is "three hundred thirty-one million, nine hundred eighty-two thousand, ninety".