254670138 has 24 divisors (see below), whose sum is σ = 552173076. Its totient is φ = 84830400.

The previous prime is 254670133. The next prime is 254670151. The reversal of 254670138 is 831076452.

It can be written as a sum of positive squares in 2 ways, for example, as 216884529 + 37785609 = 14727^2 + 6147^2 .

It is not an unprimeable number, because it can be changed into a prime (254670133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26868 + ... + 35088.

Almost surely, 2^254670138 is an apocalyptic number.

254670138 is an abundant number, since it is smaller than the sum of its proper divisors (297502938).

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

254670138 is a wasteful number, since it uses less digits than its factorization.

254670138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950 (or 9947 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 254670138 is about 15958.3877005166. The cubic root of 254670138 is about 633.8590195607.

The spelling of 254670138 in words is "two hundred fifty-four million, six hundred seventy thousand, one hundred thirty-eight".