255072740 has 24 divisors (see below), whose sum is σ = 576857400. Its totient is φ = 94180608.

The previous prime is 255072733. The next prime is 255072749. The reversal of 255072740 is 47270552.

255072740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 254785444 = 536^2 + 15962^2 .

It is a super-2 number, since 2×255072740² = 130124205382215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255072697 and 255072706.

It is not an unprimeable number, because it can be changed into a prime (255072749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490265 + ... + 490784.

It is an arithmetic number, because the mean of its divisors is an integer number (24035725).

Almost surely, 2^255072740 is an apocalyptic number.

255072740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255072740 is an abundant number, since it is smaller than the sum of its proper divisors (321784660).

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

255072740 is a wasteful number, since it uses less digits than its factorization.

255072740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981071 (or 981069 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 255072740 is about 15970.9968380186. The cubic root of 255072740 is about 634.1928612809.

The spelling of 255072740 in words is "two hundred fifty-five million, seventy-two thousand, seven hundred forty".