331445376 has 96 divisors (see below), whose sum is σ = 976095120. Its totient is φ = 107896320.

The previous prime is 331445299. The next prime is 331445377. The reversal of 331445376 is 673544133.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 331445376.

It is not an unprimeable number, because it can be changed into a prime (331445377) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46191 + ... + 52881.

Almost surely, 2^331445376 is an apocalyptic number.

331445376 is a gapful number since it is divisible by the number (36) 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 331445376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488047560).

331445376 is an abundant number, since it is smaller than the sum of its proper divisors (644649744).

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

331445376 is a wasteful number, since it uses less digits than its factorization.

331445376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754 (or 6739 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 331445376 is about 18205.6413235019. The cubic root of 331445376 is about 692.0497586370.

The spelling of 331445376 in words is "three hundred thirty-one million, four hundred forty-five thousand, three hundred seventy-six".