255738380 has 24 divisors (see below), whose sum is σ = 560401632. Its totient is φ = 97847552.

The previous prime is 255738349. The next prime is 255738383. The reversal of 255738380 is 83837552.

It is not an unprimeable number, because it can be changed into a prime (255738383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277517 + ... + 278436.

It is an arithmetic number, because the mean of its divisors is an integer number (23350068).

Almost surely, 2^255738380 is an apocalyptic number.

255738380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255738380 is an abundant number, since it is smaller than the sum of its proper divisors (304663252).

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

255738380 is a wasteful number, since it uses less digits than its factorization.

255738380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555985 (or 555983 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 255738380 is about 15991.8222851556. The cubic root of 255738380 is about 634.7440471339.

The spelling of 255738380 in words is "two hundred fifty-five million, seven hundred thirty-eight thousand, three hundred eighty".