272442623 has 4 divisors (see below), whose sum is σ = 272529480. Its totient is φ = 272355768.

The previous prime is 272442563. The next prime is 272442647. The reversal of 272442623 is 326244272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 272442623 - 2¹² = 272438527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272442623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272442683) 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, 38540 + ... + 45057.

It is an arithmetic number, because the mean of its divisors is an integer number (68132370).

Almost surely, 2^272442623 is an apocalyptic number.

272442623 is a deficient number, since it is larger than the sum of its proper divisors (86857).

272442623 is an equidigital number, since it uses as much as digits as its factorization.

272442623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86856.

The product of its digits is 32256, while the sum is 32.

The square root of 272442623 is about 16505.8360285082. The cubic root of 272442623 is about 648.2736224103.

Adding to 272442623 its reverse (326244272), we get a palindrome (598686895).

The spelling of 272442623 in words is "two hundred seventy-two million, four hundred forty-two thousand, six hundred twenty-three".