245232756 has 18 divisors (see below), whose sum is σ = 619894002. Its totient is φ = 81744240.

The previous prime is 245232727. The next prime is 245232761. The reversal of 245232756 is 657232542.

It can be written as a sum of positive squares in only one way, i.e., 216972900 + 28259856 = 14730^2 + 5316^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6812021 = 245232756 / (2 + 4 + 5 + 2 + 3 + 2 + 7 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 245232756.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3405975 + ... + 3406046.

Almost surely, 2^245232756 is an apocalyptic number.

It is an amenable number.

245232756 is an abundant number, since it is smaller than the sum of its proper divisors (374661246).

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

245232756 is a wasteful number, since it uses less digits than its factorization.

245232756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812031 (or 6812026 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 245232756 is about 15659.9091951390. The cubic root of 245232756 is about 625.9305655754.

The spelling of 245232756 in words is "two hundred forty-five million, two hundred thirty-two thousand, seven hundred fifty-six".