331324040 has 16 divisors (see below), whose sum is σ = 745479180. Its totient is φ = 132529600.

The previous prime is 331324013. The next prime is 331324051. The reversal of 331324040 is 40423133.

It can be written as a sum of positive squares in 2 ways, for example, as 331312804 + 11236 = 18202^2 + 106^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 4141511 + ... + 4141590.

Almost surely, 2^331324040 is an apocalyptic number.

It is an amenable number.

331324040 is an abundant number, since it is smaller than the sum of its proper divisors (414155140).

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

331324040 is a wasteful number, since it uses less digits than its factorization.

331324040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283112 (or 8283108 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 331324040 is about 18202.3086447846. The cubic root of 331324040 is about 691.9652994728.

Adding to 331324040 its reverse (40423133), we get a palindrome (371747173).

The spelling of 331324040 in words is "three hundred thirty-one million, three hundred twenty-four thousand, forty".