255312340 has 24 divisors (see below), whose sum is σ = 537892992. Its totient is φ = 101794080.

The previous prime is 255312331. The next prime is 255312353. The reversal of 255312340 is 43213552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14304 + ... + 26743.

It is an arithmetic number, because the mean of its divisors is an integer number (22412208).

Almost surely, 2^255312340 is an apocalyptic number.

255312340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255312340 is an abundant number, since it is smaller than the sum of its proper divisors (282580652).

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

255312340 is a wasteful number, since it uses less digits than its factorization.

255312340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41367 (or 41365 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 255312340 is about 15978.4961745466. The cubic root of 255312340 is about 634.3913733550.

Adding to 255312340 its reverse (43213552), we get a palindrome (298525892).

The spelling of 255312340 in words is "two hundred fifty-five million, three hundred twelve thousand, three hundred forty".