331891364 has 24 divisors (see below), whose sum is σ = 665242368. Its totient is φ = 141926400.

The previous prime is 331891337. The next prime is 331891367. The reversal of 331891364 is 463198133.

It is a happy number.

It is a super-2 number, since 2×331891364² = 220303754995560992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (331891367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164 + ... + 25764.

It is an arithmetic number, because the mean of its divisors is an integer number (27718432).

Almost surely, 2^331891364 is an apocalyptic number.

It is an amenable number.

331891364 is an abundant number, since it is smaller than the sum of its proper divisors (333351004).

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

331891364 is a wasteful number, since it uses less digits than its factorization.

331891364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26075 (or 26073 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 331891364 is about 18217.8858268461. The cubic root of 331891364 is about 692.3600234921.

The spelling of 331891364 in words is "three hundred thirty-one million, eight hundred ninety-one thousand, three hundred sixty-four".