245668 has 6 divisors (see below), whose sum is σ = 429926. Its totient is φ = 122832.

The previous prime is 245653. The next prime is 245671. The reversal of 245668 is 866542.

It can be written as a sum of positive squares in only one way, i.e., 191844 + 53824 = 438^2 + 232^2 .

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30705 + ... + 30712.

2²⁴⁵⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

245668 is a deficient number, since it is larger than the sum of its proper divisors (184258).

245668 is a wasteful number, since it uses less digits than its factorization.

245668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61421 (or 61419 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 245668 is about 495.6490694029. The cubic root of 245668 is about 62.6300651412.

The spelling of 245668 in words is "two hundred forty-five thousand, six hundred sixty-eight".