254242440 has 48 divisors (see below), whose sum is σ = 826289100. Its totient is φ = 67797888.

The previous prime is 254242433. The next prime is 254242481. The reversal of 254242440 is 44242452.

254242440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 250715556 + 3526884 = 15834^2 + 1878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352755 + ... + 353474.

Almost surely, 2^254242440 is an apocalyptic number.

254242440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254242440 is an abundant number, since it is smaller than the sum of its proper divisors (572046660).

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

254242440 is a wasteful number, since it uses less digits than its factorization.

254242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706246 (or 706239 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 254242440 is about 15944.9816556809. The cubic root of 254242440 is about 633.5039823316.

Adding to 254242440 its reverse (44242452), we get a palindrome (298484892).

The spelling of 254242440 in words is "two hundred fifty-four million, two hundred forty-two thousand, four hundred forty".