33321772 has 24 divisors (see below), whose sum is σ = 63841680. Its totient is φ = 15092160.

The previous prime is 33321767. The next prime is 33321781. The reversal of 33321772 is 27712333.

It is a super-2 number, since 2×33321772² = 2220680978439968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33321772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12754 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (2660070).

Almost surely, 2^33321772 is an apocalyptic number.

It is an amenable number.

33321772 is a deficient number, since it is larger than the sum of its proper divisors (30519908).

33321772 is a wasteful number, since it uses less digits than its factorization.

33321772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2719 counting only the distinct ones).

The product of its digits is 5292, while the sum is 28.

The square root of 33321772 is about 5772.5013642268. The cubic root of 33321772 is about 321.7925827506.

The spelling of 33321772 in words is "thirty-three million, three hundred twenty-one thousand, seven hundred seventy-two".