33386028 has 48 divisors (see below), whose sum is σ = 88835040. Its totient is φ = 9667584.

The previous prime is 33385997. The next prime is 33386029. The reversal of 33386028 is 82068333.

It is a super-2 number, since 2×33386028² = 2229253731233568, 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 33386028.

It is not an unprimeable number, because it can be changed into a prime (33386029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3643 + ... + 8946.

It is an arithmetic number, because the mean of its divisors is an integer number (1850730).

Almost surely, 2^33386028 is an apocalyptic number.

It is an amenable number.

33386028 is an abundant number, since it is smaller than the sum of its proper divisors (55449012).

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

33386028 is a wasteful number, since it uses less digits than its factorization.

33386028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626 (or 12624 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 33386028 is about 5778.0643817805. The cubic root of 33386028 is about 321.9992927212. Note that the first 3 decimals are identical.

The spelling of 33386028 in words is "thirty-three million, three hundred eighty-six thousand, twenty-eight".