272765540 has 12 divisors (see below), whose sum is σ = 572807676. Its totient is φ = 109106208.

The previous prime is 272765491. The next prime is 272765551. The reversal of 272765540 is 45567272.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76597504 + 196168036 = 8752^2 + 14006^2 .

It is a super-2 number, since 2×272765540² = 148802079622983200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 272765494 and 272765503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6819119 + ... + 6819158.

It is an arithmetic number, because the mean of its divisors is an integer number (47733973).

Almost surely, 2^272765540 is an apocalyptic number.

272765540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272765540 is an abundant number, since it is smaller than the sum of its proper divisors (300042136).

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

272765540 is a wasteful number, since it uses less digits than its factorization.

272765540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13638286 (or 13638284 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 272765540 is about 16515.6150354748. The cubic root of 272765540 is about 648.5296468631.

The spelling of 272765540 in words is "two hundred seventy-two million, seven hundred sixty-five thousand, five hundred forty".