272842381 has 4 divisors (see below), whose sum is σ = 311819872. Its totient is φ = 233864892.

The previous prime is 272842327. The next prime is 272842387. The reversal of 272842381 is 183248272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 272842381 - 2¹¹ = 272840333 is a prime.

It is a super-2 number, since 2×272842381² = 148885929739498322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 272842381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272842387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19488735 + ... + 19488748.

It is an arithmetic number, because the mean of its divisors is an integer number (77954968).

Almost surely, 2^272842381 is an apocalyptic number.

It is an amenable number.

272842381 is a deficient number, since it is larger than the sum of its proper divisors (38977491).

272842381 is an equidigital number, since it uses as much as digits as its factorization.

272842381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38977490.

The product of its digits is 43008, while the sum is 37.

The square root of 272842381 is about 16517.9411852688. The cubic root of 272842381 is about 648.5905404151.

The spelling of 272842381 in words is "two hundred seventy-two million, eight hundred forty-two thousand, three hundred eighty-one".