3221264 has 10 divisors (see below), whose sum is σ = 6241230. Its totient is φ = 1610624.

The previous prime is 3221261. The next prime is 3221269. The reversal of 3221264 is 4621223.

It can be written as a sum of positive squares in only one way, i.e., 3211264 + 10000 = 1792^2 + 100^2 .

It is not an unprimeable number, because it can be changed into a prime (3221261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100649 + ... + 100680.

It is an arithmetic number, because the mean of its divisors is an integer number (624123).

Almost surely, 2^3221264 is an apocalyptic number.

It is an amenable number.

3221264 is a deficient number, since it is larger than the sum of its proper divisors (3019966).

3221264 is a wasteful number, since it uses less digits than its factorization.

3221264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201337 (or 201331 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 3221264 is about 1794.7880097661. The cubic root of 3221264 is about 147.6869448062.

Adding to 3221264 its reverse (4621223), we get a palindrome (7842487).

The spelling of 3221264 in words is "three million, two hundred twenty-one thousand, two hundred sixty-four".