331340330 has 8 divisors (see below), whose sum is σ = 596412612. Its totient is φ = 132536128.

The previous prime is 331340309. The next prime is 331340351. The reversal of 331340330 is 33043133.

It is an interprime number because it is at equal distance from previous prime (331340309) and next prime (331340351).

It can be written as a sum of positive squares in 2 ways, for example, as 320732281 + 10608049 = 17909^2 + 3257^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16567007 + ... + 16567026.

Almost surely, 2^331340330 is an apocalyptic number.

331340330 is a deficient number, since it is larger than the sum of its proper divisors (265072282).

331340330 is a wasteful number, since it uses less digits than its factorization.

331340330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33134040.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 331340330 is about 18202.7561099961. The cubic root of 331340330 is about 691.9766397607.

Adding to 331340330 its reverse (33043133), we get a palindrome (364383463).

The spelling of 331340330 in words is "three hundred thirty-one million, three hundred forty thousand, three hundred thirty".