270138856 has 16 divisors (see below), whose sum is σ = 545472900. Its totient is φ = 124679424.

The previous prime is 270138851. The next prime is 270138859. The reversal of 270138856 is 658831072.

It can be written as a sum of positive squares in 2 ways, for example, as 270076356 + 62500 = 16434^2 + 250^2 .

It is not an unprimeable number, because it can be changed into a prime (270138851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298641 + ... + 1298848.

Almost surely, 2^270138856 is an apocalyptic number.

270138856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

270138856 is an abundant number, since it is smaller than the sum of its proper divisors (275334044).

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

270138856 is a wasteful number, since it uses less digits than its factorization.

270138856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597508 (or 2597504 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 270138856 is about 16435.9014355769. The cubic root of 270138856 is about 646.4411866075.

The spelling of 270138856 in words is "two hundred seventy million, one hundred thirty-eight thousand, eight hundred fifty-six".