272821266 has 48 divisors (see below), whose sum is σ = 642320640. Its totient is φ = 83371680.

The previous prime is 272821261. The next prime is 272821271. The reversal of 272821266 is 662128272.

It is an interprime number because it is at equal distance from previous prime (272821261) and next prime (272821271).

It is a self number, because there is not a number n which added to its sum of digits gives 272821266.

It is not an unprimeable number, because it can be changed into a prime (272821261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2265 + ... + 23468.

It is an arithmetic number, because the mean of its divisors is an integer number (13381680).

Almost surely, 2^272821266 is an apocalyptic number.

272821266 is an abundant number, since it is smaller than the sum of its proper divisors (369499374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

272821266 is a wasteful number, since it uses less digits than its factorization.

272821266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25791 (or 25788 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 272821266 is about 16517.3020193977. The cubic root of 272821266 is about 648.5738087250.

The spelling of 272821266 in words is "two hundred seventy-two million, eight hundred twenty-one thousand, two hundred sixty-six".