331694880 has 144 divisors (see below), whose sum is σ = 1148660352. Its totient is φ = 80396800.

The previous prime is 331694827. The next prime is 331694911. The reversal of 331694880 is 88496133.

It is a happy number.

It is a super-2 number, since 2×331694880² = 220042986836428800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55225 + ... + 60935.

It is an arithmetic number, because the mean of its divisors is an integer number (7976808).

Almost surely, 2^331694880 is an apocalyptic number.

331694880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331694880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574330176).

331694880 is an abundant number, since it is smaller than the sum of its proper divisors (816965472).

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

331694880 is a wasteful number, since it uses less digits than its factorization.

331694880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751 (or 5732 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 331694880 is about 18212.4924159216. The cubic root of 331694880 is about 692.2233678112.

The spelling of 331694880 in words is "three hundred thirty-one million, six hundred ninety-four thousand, eight hundred eighty".