33221464 has 16 divisors (see below), whose sum is σ = 62637120. Its totient is φ = 16518240.

The previous prime is 33221459. The next prime is 33221479. The reversal of 33221464 is 46412233.

It is a super-2 number, since 2×33221464² = 2207331340606592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10024 + ... + 12919.

It is an arithmetic number, because the mean of its divisors is an integer number (3914820).

Almost surely, 2^33221464 is an apocalyptic number.

It is an amenable number.

33221464 is a deficient number, since it is larger than the sum of its proper divisors (29415656).

33221464 is a wasteful number, since it uses less digits than its factorization.

33221464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23130 (or 23126 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 33221464 is about 5763.8063812033. The cubic root of 33221464 is about 321.4693625081.

Adding to 33221464 its reverse (46412233), we get a palindrome (79633697).

The spelling of 33221464 in words is "thirty-three million, two hundred twenty-one thousand, four hundred sixty-four".