68445364 has 12 divisors (see below), whose sum is σ = 128993284. Its totient is φ = 31590144.

The previous prime is 68445329. The next prime is 68445367. The reversal of 68445364 is 46354486.

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 32947600 = 5958^2 + 5740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68445367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658077 + ... + 658180.

Almost surely, 2^68445364 is an apocalyptic number.

It is an amenable number.

68445364 is a deficient number, since it is larger than the sum of its proper divisors (60547920).

68445364 is a wasteful number, since it uses less digits than its factorization.

68445364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316274 (or 1316272 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The square root of 68445364 is about 8273.1713387310. The cubic root of 68445364 is about 409.0546611864.

The spelling of 68445364 in words is "sixty-eight million, four hundred forty-five thousand, three hundred sixty-four".