331669830 has 64 divisors (see below), whose sum is σ = 847723968. Its totient is φ = 82759680.

The previous prime is 331669829. The next prime is 331669843. The reversal of 331669830 is 38966133.

It is a super-2 number, since 2×331669830² = 220009752264457800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 90514 + ... + 94106.

It is an arithmetic number, because the mean of its divisors is an integer number (13245687).

Almost surely, 2^331669830 is an apocalyptic number.

331669830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 331669830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423861984).

331669830 is an abundant number, since it is smaller than the sum of its proper divisors (516054138).

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

331669830 is a wasteful number, since it uses less digits than its factorization.

331669830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 331669830 is about 18211.8046881686. The cubic root of 331669830 is about 692.2059415228.

The spelling of 331669830 in words is "three hundred thirty-one million, six hundred sixty-nine thousand, eight hundred thirty".