245772724 has 6 divisors (see below), whose sum is σ = 430102274. Its totient is φ = 122886360.

The previous prime is 245772707. The next prime is 245772727. The reversal of 245772724 is 427277542.

245772724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 234090000 + 11682724 = 15300^2 + 3418^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245772727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30721587 + ... + 30721594.

Almost surely, 2^245772724 is an apocalyptic number.

It is an amenable number.

245772724 is a deficient number, since it is larger than the sum of its proper divisors (184329550).

245772724 is a wasteful number, since it uses less digits than its factorization.

245772724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61443185 (or 61443183 counting only the distinct ones).

The product of its digits is 219520, while the sum is 40.

The square root of 245772724 is about 15677.1401728759. The cubic root of 245772724 is about 626.3896324647.

The spelling of 245772724 in words is "two hundred forty-five million, seven hundred seventy-two thousand, seven hundred twenty-four".