254243240 has 16 divisors (see below), whose sum is σ = 572047380. Its totient is φ = 101697280.

The previous prime is 254243233. The next prime is 254243281. The reversal of 254243240 is 42342452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 231222436 + 23020804 = 15206^2 + 4798^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3178001 + ... + 3178080.

Almost surely, 2^254243240 is an apocalyptic number.

254243240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254243240 is an abundant number, since it is smaller than the sum of its proper divisors (317804140).

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

254243240 is a wasteful number, since it uses less digits than its factorization.

254243240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356092 (or 6356088 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 254243240 is about 15945.0067419239. The cubic root of 254243240 is about 633.5046467927.

Adding to 254243240 its reverse (42342452), we get a palindrome (296585692).

The spelling of 254243240 in words is "two hundred fifty-four million, two hundred forty-three thousand, two hundred forty".