254968638 has 64 divisors (see below), whose sum is σ = 559353600. Its totient is φ = 77172480.

The previous prime is 254968607. The next prime is 254968643. The reversal of 254968638 is 836869452.

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 31 ways as a sum of consecutive naturals, for example, 770133 + ... + 770463.

It is an arithmetic number, because the mean of its divisors is an integer number (8739900).

Almost surely, 2^254968638 is an apocalyptic number.

254968638 is an abundant number, since it is smaller than the sum of its proper divisors (304384962).

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

254968638 is a wasteful number, since it uses less digits than its factorization.

254968638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 2488320, while the sum is 51.

The square root of 254968638 is about 15967.7374101655. The cubic root of 254968638 is about 634.1065725241.

The spelling of 254968638 in words is "two hundred fifty-four million, nine hundred sixty-eight thousand, six hundred thirty-eight".