254443200454040 has 32 divisors (see below), whose sum is σ = 616535447255280. Its totient is φ = 93948258628992.

The previous prime is 254443200454019. The next prime is 254443200454063. The reversal of 254443200454040 is 40454002344452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244656922994 + ... + 244656924033.

Almost surely, 2^{254443200454040} is an apocalyptic number.

254443200454040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254443200454040 is an abundant number, since it is smaller than the sum of its proper divisors (362092246801240).

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

254443200454040 is a wasteful number, since it uses less digits than its factorization.

254443200454040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489313847051 (or 489313847047 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 41.

Adding to 254443200454040 its reverse (40454002344452), we get a palindrome (294897202798492).

The spelling of 254443200454040 in words is "two hundred fifty-four trillion, four hundred forty-three billion, two hundred million, four hundred fifty-four thousand, forty".