268491654 has 24 divisors (see below), whose sum is σ = 591594120. Its totient is φ = 87979968.

The previous prime is 268491611. The next prime is 268491661. The reversal of 268491654 is 456194862.

It is a Curzon number.

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, 125347 + ... + 127470.

It is an arithmetic number, because the mean of its divisors is an integer number (24649755).

Almost surely, 2^268491654 is an apocalyptic number.

268491654 is an abundant number, since it is smaller than the sum of its proper divisors (323102466).

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

268491654 is a wasteful number, since it uses less digits than its factorization.

268491654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252884 (or 252881 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 268491654 is about 16385.7149371030. The cubic root of 268491654 is about 645.1245910392.

The spelling of 268491654 in words is "two hundred sixty-eight million, four hundred ninety-one thousand, six hundred fifty-four".