255746540 has 24 divisors (see below), whose sum is σ = 613792032. Its totient is φ = 87684480.

The previous prime is 255746539. The next prime is 255746551. The reversal of 255746540 is 45647552.

It is a junction number, because it is equal to n+sod(n) for n = 255746494 and 255746503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913241 + ... + 913520.

It is an arithmetic number, because the mean of its divisors is an integer number (25574668).

Almost surely, 2^255746540 is an apocalyptic number.

255746540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255746540 is an abundant number, since it is smaller than the sum of its proper divisors (358045492).

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

255746540 is a wasteful number, since it uses less digits than its factorization.

255746540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826777 (or 1826775 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 255746540 is about 15992.0774135195. The cubic root of 255746540 is about 634.7507981168.

The spelling of 255746540 in words is "two hundred fifty-five million, seven hundred forty-six thousand, five hundred forty".