331340626 has 8 divisors (see below), whose sum is σ = 498419964. Its totient is φ = 165200640.

The previous prime is 331340621. The next prime is 331340627. The reversal of 331340626 is 626043133.

331340626 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 329241025 + 2099601 = 18145^2 + 1449^2 .

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

It is a super-2 number, since 2×331340626² = 219573220876143752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331340594 and 331340603.

It is not an unprimeable number, because it can be changed into a prime (331340621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233955 + ... + 235366.

Almost surely, 2^331340626 is an apocalyptic number.

331340626 is a deficient number, since it is larger than the sum of its proper divisors (167079338).

331340626 is a wasteful number, since it uses less digits than its factorization.

331340626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469676.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 331340626 is about 18202.7642406311. The cubic root of 331340626 is about 691.9768458178.

Adding to 331340626 its reverse (626043133), we get a palindrome (957383759).

The spelling of 331340626 in words is "three hundred thirty-one million, three hundred forty thousand, six hundred twenty-six".