331400000 has 84 divisors (see below), whose sum is σ = 822470796. Its totient is φ = 132480000.

The previous prime is 331399997. The next prime is 331400059. The reversal of 331400000 is 4133.

It can be written as a sum of positive squares in 6 ways, for example, as 295014976 + 36385024 = 17176^2 + 6032^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199172 + ... + 200828.

It is an arithmetic number, because the mean of its divisors is an integer number (9791319).

Almost surely, 2^331400000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411235398).

331400000 is an abundant number, since it is smaller than the sum of its proper divisors (491070796).

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

331400000 is an frugal number, since it uses more digits than its factorization.

331400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 331400000 is about 18204.3950737178. The cubic root of 331400000 is about 692.0181758733.

Adding to 331400000 its reverse (4133), we get a palindrome (331404133).

The spelling of 331400000 in words is "three hundred thirty-one million, four hundred thousand".