245764 has 6 divisors (see below), whose sum is σ = 430094. Its totient is φ = 122880.

The previous prime is 245759. The next prime is 245771. The reversal of 245764 is 467542.

It can be written as a sum of positive squares in only one way, i.e., 202500 + 43264 = 450^2 + 208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30717 + ... + 30724.

245764 is a Friedman number, since it can be written as 4+(6*5*4^7)/2, using all its digits and the basic arithmetic operations.

2²⁴⁵⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

245764 is a deficient number, since it is larger than the sum of its proper divisors (184330).

245764 is a wasteful number, since it uses less digits than its factorization.

245764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61445 (or 61443 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 245764 is about 495.7459026558. The cubic root of 245764 is about 62.6382220891.

The spelling of 245764 in words is "two hundred forty-five thousand, seven hundred sixty-four".