271221264 has 80 divisors (see below), whose sum is σ = 824322240. Its totient is φ = 85086720.

The previous prime is 271221227. The next prime is 271221277. The reversal of 271221264 is 462122172.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11122 + ... + 25809.

It is an arithmetic number, because the mean of its divisors is an integer number (10304028).

Almost surely, 2^271221264 is an apocalyptic number.

271221264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

271221264 is an abundant number, since it is smaller than the sum of its proper divisors (553100976).

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

271221264 is a wasteful number, since it uses less digits than its factorization.

271221264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36965 (or 36953 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 271221264 is about 16468.7966773532. The cubic root of 271221264 is about 647.3034353127.

The spelling of 271221264 in words is "two hundred seventy-one million, two hundred twenty-one thousand, two hundred sixty-four".