254543340440 has 16 divisors (see below), whose sum is σ = 572722516080. Its totient is φ = 101817336160.

The previous prime is 254543340439. The next prime is 254543340473. The reversal of 254543340440 is 44043345452.

It is a junction number, because it is equal to n+sod(n) for n = 254543340394 and 254543340403.

It is a congruent number.

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, 3181791716 + ... + 3181791795.

It is an arithmetic number, because the mean of its divisors is an integer number (35795157255).

Almost surely, 2^254543340440 is an apocalyptic number.

254543340440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254543340440 is an abundant number, since it is smaller than the sum of its proper divisors (318179175640).

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

254543340440 is a wasteful number, since it uses less digits than its factorization.

254543340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363583522 (or 6363583518 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 254543340440 its reverse (44043345452), we get a palindrome (298586685892).

The spelling of 254543340440 in words is "two hundred fifty-four billion, five hundred forty-three million, three hundred forty thousand, four hundred forty".