331946493 has 4 divisors (see below), whose sum is σ = 442595328. Its totient is φ = 221297660.

The previous prime is 331946467. The next prime is 331946507. The reversal of 331946493 is 394649133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331946493 - 2¹⁶ = 331880957 is a prime.

It is a super-2 number, since 2×331946493² = 220376948429998098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331946423) 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, 55324413 + ... + 55324418.

It is an arithmetic number, because the mean of its divisors is an integer number (110648832).

Almost surely, 2^331946493 is an apocalyptic number.

It is an amenable number.

331946493 is a deficient number, since it is larger than the sum of its proper divisors (110648835).

331946493 is a wasteful number, since it uses less digits than its factorization.

331946493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110648834.

The product of its digits is 209952, while the sum is 42.

The square root of 331946493 is about 18219.3988100596. The cubic root of 331946493 is about 692.3983563190.

The spelling of 331946493 in words is "three hundred thirty-one million, nine hundred forty-six thousand, four hundred ninety-three".