268540745 has 12 divisors (see below), whose sum is σ = 354208260. Its totient is φ = 195301920.

The previous prime is 268540733. The next prime is 268540777. The reversal of 268540745 is 547045862.

It can be written as a sum of positive squares in 2 ways, for example, as 188760121 + 79780624 = 13739^2 + 8932^2 .

It is a de Polignac number, because none of the positive numbers 2^k-268540745 is a prime.

It is a super-2 number, since 2×268540745² = 144228263450310050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 221330 + ... + 222539.

It is an arithmetic number, because the mean of its divisors is an integer number (29517355).

Almost surely, 2^268540745 is an apocalyptic number.

It is an amenable number.

268540745 is a deficient number, since it is larger than the sum of its proper divisors (85667515).

268540745 is a wasteful number, since it uses less digits than its factorization.

268540745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443896 (or 443885 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 268540745 is about 16387.2128502683. The cubic root of 268540745 is about 645.1639068253.

The spelling of 268540745 in words is "two hundred sixty-eight million, five hundred forty thousand, seven hundred forty-five".