268498634 has 4 divisors (see below), whose sum is σ = 402747954. Its totient is φ = 134249316.

The previous prime is 268498621. The next prime is 268498669. The reversal of 268498634 is 436894862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436894862 = 2 ⋅218447431.

It can be written as a sum of positive squares in only one way, i.e., 251317609 + 17181025 = 15853^2 + 4145^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67124657 + ... + 67124660.

Almost surely, 2^268498634 is an apocalyptic number.

268498634 is a deficient number, since it is larger than the sum of its proper divisors (134249320).

268498634 is a wasteful number, since it uses less digits than its factorization.

268498634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134249319.

The product of its digits is 1990656, while the sum is 50.

The square root of 268498634 is about 16385.9279261200. The cubic root of 268498634 is about 645.1301814434.

The spelling of 268498634 in words is "two hundred sixty-eight million, four hundred ninety-eight thousand, six hundred thirty-four".