254345132453240 has 128 divisors (see below), whose sum is σ = 601294416076800. Its totient is φ = 96699651548160.

The previous prime is 254345132453227. The next prime is 254345132453297. The reversal of 254345132453240 is 42354231543452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79119524 + ... + 82271436.

It is an arithmetic number, because the mean of its divisors is an integer number (4697612625600).

Almost surely, 2^{254345132453240} is an apocalyptic number.

254345132453240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254345132453240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300647208038400).

254345132453240 is an abundant number, since it is smaller than the sum of its proper divisors (346949283623560).

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

254345132453240 is a wasteful number, since it uses less digits than its factorization.

254345132453240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153117 (or 3153113 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 47.

Adding to 254345132453240 its reverse (42354231543452), we get a palindrome (296699363996692).

The spelling of 254345132453240 in words is "two hundred fifty-four trillion, three hundred forty-five billion, one hundred thirty-two million, four hundred fifty-three thousand, two hundred forty".