331465386 has 64 divisors (see below), whose sum is σ = 770282496. Its totient is φ = 93139200.

The previous prime is 331465373. The next prime is 331465427. The reversal of 331465386 is 683564133.

It is a super-2 number, since 2×331465386² = 219738604232257992, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 1001241 + ... + 1001571.

It is an arithmetic number, because the mean of its divisors is an integer number (12035664).

Almost surely, 2^331465386 is an apocalyptic number.

331465386 is an abundant number, since it is smaller than the sum of its proper divisors (438817110).

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

331465386 is a wasteful number, since it uses less digits than its factorization.

331465386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667.

The product of its digits is 155520, while the sum is 39.

The square root of 331465386 is about 18206.1908701408. The cubic root of 331465386 is about 692.0636851520.

The spelling of 331465386 in words is "three hundred thirty-one million, four hundred sixty-five thousand, three hundred eighty-six".