272299421 has 4 divisors (see below), whose sum is σ = 288317052. Its totient is φ = 256281792.

The previous prime is 272299403. The next prime is 272299441. The reversal of 272299421 is 124992272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 201924100 + 70375321 = 14210^2 + 8389^2 .

It is a cyclic number.

It is not a de Polignac number, because 272299421 - 2¹⁸ = 272037277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272299441) 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, 8008790 + ... + 8008823.

It is an arithmetic number, because the mean of its divisors is an integer number (72079263).

Almost surely, 2^272299421 is an apocalyptic number.

It is an amenable number.

272299421 is a deficient number, since it is larger than the sum of its proper divisors (16017631).

272299421 is a wasteful number, since it uses less digits than its factorization.

272299421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16017630.

The product of its digits is 36288, while the sum is 38.

The square root of 272299421 is about 16501.4975381024. The cubic root of 272299421 is about 648.1600200816.

The spelling of 272299421 in words is "two hundred seventy-two million, two hundred ninety-nine thousand, four hundred twenty-one".