331669446 has 8 divisors (see below), whose sum is σ = 663338904. Its totient is φ = 110556480.

The previous prime is 331669427. The next prime is 331669463. The reversal of 331669446 is 644966133.

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

331669446 is an admirable number.

It is a super-2 number, since 2×331669446² = 220009242819893832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331669398 and 331669407.

It is a congruent number.

It is an unprimeable number.

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, 27639115 + ... + 27639126.

It is an arithmetic number, because the mean of its divisors is an integer number (82917363).

Almost surely, 2^331669446 is an apocalyptic number.

331669446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

331669446 is a wasteful number, since it uses less digits than its factorization.

331669446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55278246.

The product of its digits is 279936, while the sum is 42.

The square root of 331669446 is about 18211.7941455530. The cubic root of 331669446 is about 692.2056743825.

The spelling of 331669446 in words is "three hundred thirty-one million, six hundred sixty-nine thousand, four hundred forty-six".