68313330 has 24 divisors (see below), whose sum is σ = 177614892. Its totient is φ = 18216864.

The previous prime is 68313319. The next prime is 68313337. The reversal of 68313330 is 3331386.

It can be written as a sum of positive squares in 2 ways, for example, as 64016001 + 4297329 = 8001^2 + 2073^2 .

It is a super-2 number, since 2×68313330² = 9333422111377800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68313294 and 68313303.

It is not an unprimeable number, because it can be changed into a prime (68313337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379429 + ... + 379608.

Almost surely, 2^68313330 is an apocalyptic number.

68313330 is an abundant number, since it is smaller than the sum of its proper divisors (109301562).

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

68313330 is a wasteful number, since it uses less digits than its factorization.

68313330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759050 (or 759047 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 68313330 is about 8265.1878381559. The cubic root of 68313330 is about 408.7914639642.

The spelling of 68313330 in words is "sixty-eight million, three hundred thirteen thousand, three hundred thirty".