254944391 has 8 divisors (see below), whose sum is σ = 276144960. Its totient is φ = 233970912.

The previous prime is 254944387. The next prime is 254944399. The reversal of 254944391 is 193449452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254944391 - 2² = 254944387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254944399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54431 + ... + 58928.

It is an arithmetic number, because the mean of its divisors is an integer number (34518120).

Almost surely, 2^254944391 is an apocalyptic number.

254944391 is a deficient number, since it is larger than the sum of its proper divisors (21200569).

254944391 is a wasteful number, since it uses less digits than its factorization.

254944391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113545.

The product of its digits is 155520, while the sum is 41.

The square root of 254944391 is about 15966.9781424038. The cubic root of 254944391 is about 634.0864711375.

The spelling of 254944391 in words is "two hundred fifty-four million, nine hundred forty-four thousand, three hundred ninety-one".