331366394 has 8 divisors (see below), whose sum is σ = 497127360. Its totient is φ = 165657276.

The previous prime is 331366393. The next prime is 331366429. The reversal of 331366394 is 493663133.

331366394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (331366391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15647 + ... + 30125.

It is an arithmetic number, because the mean of its divisors is an integer number (62140920).

Almost surely, 2^331366394 is an apocalyptic number.

331366394 is a deficient number, since it is larger than the sum of its proper divisors (165760966).

331366394 is a wasteful number, since it uses less digits than its factorization.

331366394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25924.

The product of its digits is 104976, while the sum is 38.

The square root of 331366394 is about 18203.4720314560. The cubic root of 331366394 is about 691.9947834483.

The spelling of 331366394 in words is "three hundred thirty-one million, three hundred sixty-six thousand, three hundred ninety-four".