618272 has 18 divisors (see below), whose sum is σ = 1226043. Its totient is φ = 306912.

The previous prime is 618271. The next prime is 618287. The reversal of 618272 is 272816.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 309136 + 309136 = 556^2 + 556^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=556.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618271) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4379 + ... + 4517.

2⁶¹⁸²⁷² is an apocalyptic number.

It is an amenable number.

618272 is a deficient number, since it is larger than the sum of its proper divisors (607771).

618272 is an equidigital number, since it uses as much as digits as its factorization.

618272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 141 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 618272 is about 786.3027406794. The cubic root of 618272 is about 85.1908973649.

The spelling of 618272 in words is "six hundred eighteen thousand, two hundred seventy-two".