245636768 has 72 divisors (see below), whose sum is σ = 534161628. Its totient is φ = 111101952.

The previous prime is 245636759. The next prime is 245636771. The reversal of 245636768 is 867636542.

It can be written as a sum of positive squares in 6 ways, for example, as 117765904 + 127870864 = 10852^2 + 11308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286196 + ... + 287052.

Almost surely, 2^245636768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245636768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267080814).

245636768 is an abundant number, since it is smaller than the sum of its proper divisors (288524860).

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

245636768 is a wasteful number, since it uses less digits than its factorization.

245636768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 925 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 47.

The square root of 245636768 is about 15672.8034505637. The cubic root of 245636768 is about 626.2741095601.

The spelling of 245636768 in words is "two hundred forty-five million, six hundred thirty-six thousand, seven hundred sixty-eight".