272868645 has 32 divisors (see below), whose sum is σ = 508384512. Its totient is φ = 122383872.

The previous prime is 272868643. The next prime is 272868719. The reversal of 272868645 is 546868272.

272868645 = 3885² + 3886² + ... + 3902².

It is not a de Polignac number, because 272868645 - 2¹ = 272868643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272868594 and 272868603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272868641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18952 + ... + 30081.

It is an arithmetic number, because the mean of its divisors is an integer number (15887016).

Almost surely, 2^272868645 is an apocalyptic number.

It is an amenable number.

272868645 is a deficient number, since it is larger than the sum of its proper divisors (235515867).

272868645 is a wasteful number, since it uses less digits than its factorization.

272868645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49101.

The product of its digits is 1290240, while the sum is 48.

The square root of 272868645 is about 16518.7361804710. The cubic root of 272868645 is about 648.6113510083.

The spelling of 272868645 in words is "two hundred seventy-two million, eight hundred sixty-eight thousand, six hundred forty-five".