255340392 has 64 divisors (see below), whose sum is σ = 674472000. Its totient is φ = 80331264.

The previous prime is 255340381. The next prime is 255340433. The reversal of 255340392 is 293043552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141834 + ... + 143622.

It is an arithmetic number, because the mean of its divisors is an integer number (10538625).

Almost surely, 2^255340392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255340392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337236000).

255340392 is an abundant number, since it is smaller than the sum of its proper divisors (419131608).

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

255340392 is a wasteful number, since it uses less digits than its factorization.

255340392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 255340392 is about 15979.3739551961. The cubic root of 255340392 is about 634.4146067209.

The spelling of 255340392 in words is "two hundred fifty-five million, three hundred forty thousand, three hundred ninety-two".