245695760 has 20 divisors (see below), whose sum is σ = 571242828. Its totient is φ = 98278272.

The previous prime is 245695759. The next prime is 245695763. The reversal of 245695760 is 67596542.

It can be written as a sum of positive squares in 2 ways, for example, as 106172416 + 139523344 = 10304^2 + 11812^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (245695763) 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, 1535519 + ... + 1535678.

Almost surely, 2^245695760 is an apocalyptic number.

245695760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245695760 is an abundant number, since it is smaller than the sum of its proper divisors (325547068).

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

245695760 is a wasteful number, since it uses less digits than its factorization.

245695760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071210 (or 3071204 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 245695760 is about 15674.6853237952. The cubic root of 245695760 is about 626.3242407699.

The spelling of 245695760 in words is "two hundred forty-five million, six hundred ninety-five thousand, seven hundred sixty".