268536534 has 32 divisors (see below), whose sum is σ = 615296256. Its totient is φ = 76537440.

The previous prime is 268536517. The next prime is 268536571. The reversal of 268536534 is 435635862.

It is a super-2 number, since 2×268536534² = 144223740185466312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10089 + ... + 25275.

It is an arithmetic number, because the mean of its divisors is an integer number (19228008).

Almost surely, 2^268536534 is an apocalyptic number.

268536534 is an abundant number, since it is smaller than the sum of its proper divisors (346759722).

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

268536534 is a wasteful number, since it uses less digits than its factorization.

268536534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15620.

The product of its digits is 518400, while the sum is 42.

The square root of 268536534 is about 16387.0843654385. The cubic root of 268536534 is about 645.1605345258.

The spelling of 268536534 in words is "two hundred sixty-eight million, five hundred thirty-six thousand, five hundred thirty-four".