254428479 has 8 divisors (see below), whose sum is σ = 376931120. Its totient is φ = 169618968.

The previous prime is 254428379. The next prime is 254428523. The reversal of 254428479 is 974824452.

It is not a de Polignac number, because 254428479 - 2²¹ = 252331327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254428379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711612 + ... + 4711665.

It is an arithmetic number, because the mean of its divisors is an integer number (47116390).

Almost surely, 2^254428479 is an apocalyptic number.

254428479 is a deficient number, since it is larger than the sum of its proper divisors (122502641).

254428479 is an equidigital number, since it uses as much as digits as its factorization.

254428479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9423286 (or 9423280 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 254428479 is about 15950.8143679249. The cubic root of 254428479 is about 633.6584644241.

The spelling of 254428479 in words is "two hundred fifty-four million, four hundred twenty-eight thousand, four hundred seventy-nine".