331681846 has 8 divisors (see below), whose sum is σ = 497642904. Its totient is φ = 165800880.

The previous prime is 331681843. The next prime is 331681853. The reversal of 331681846 is 648186133.

It is a happy number.

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

It is a super-2 number, since 2×331681846² = 220025693931935432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331681799 and 331681808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331681843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8295 + ... + 27058.

It is an arithmetic number, because the mean of its divisors is an integer number (62205363).

Almost surely, 2^331681846 is an apocalyptic number.

331681846 is a deficient number, since it is larger than the sum of its proper divisors (165961058).

331681846 is a wasteful number, since it uses less digits than its factorization.

331681846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40046.

The product of its digits is 82944, while the sum is 40.

The square root of 331681846 is about 18212.1345810973. The cubic root of 331681846 is about 692.2143006854.

The spelling of 331681846 in words is "three hundred thirty-one million, six hundred eighty-one thousand, eight hundred forty-six".