254047240 has 16 divisors (see below), whose sum is σ = 571606380. Its totient is φ = 101618880.

The previous prime is 254047237. The next prime is 254047243. The reversal of 254047240 is 42740452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (254047237) and next prime (254047243).

It can be written as a sum of positive squares in 2 ways, for example, as 251095716 + 2951524 = 15846^2 + 1718^2 .

It is a junction number, because it is equal to n+sod(n) for n = 254047199 and 254047208.

It is not an unprimeable number, because it can be changed into a prime (254047243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3175551 + ... + 3175630.

Almost surely, 2^254047240 is an apocalyptic number.

254047240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254047240 is an abundant number, since it is smaller than the sum of its proper divisors (317559140).

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

254047240 is a wasteful number, since it uses less digits than its factorization.

254047240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351192 (or 6351188 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 254047240 is about 15938.8594322179. The cubic root of 254047240 is about 633.3418121364.

Adding to 254047240 its reverse (42740452), we get a palindrome (296787692).

The spelling of 254047240 in words is "two hundred fifty-four million, forty-seven thousand, two hundred forty".