331346626 has 16 divisors (see below), whose sum is σ = 566738424. Its totient is φ = 143933184.

The previous prime is 331346611. The next prime is 331346629. The reversal of 331346626 is 626643133.

It can be written as a sum of positive squares in 4 ways, for example, as 253924225 + 77422401 = 15935^2 + 8799^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 331346591 and 331346600.

It is not an unprimeable number, because it can be changed into a prime (331346629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374385 + ... + 375268.

Almost surely, 2^331346626 is an apocalyptic number.

331346626 is a deficient number, since it is larger than the sum of its proper divisors (235391798).

331346626 is a wasteful number, since it uses less digits than its factorization.

331346626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749685.

The product of its digits is 46656, while the sum is 34.

The square root of 331346626 is about 18202.9290500183. The cubic root of 331346626 is about 691.9810226232.

Adding to 331346626 its reverse (626643133), we get a palindrome (957989759).

The spelling of 331346626 in words is "three hundred thirty-one million, three hundred forty-six thousand, six hundred twenty-six".