33428366 has 24 divisors (see below), whose sum is σ = 52558392. Its totient is φ = 15940800.

The previous prime is 33428359. The next prime is 33428383. The reversal of 33428366 is 66382433.

It is a super-2 number, since 2×33428366² = 2234911306859912, 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 11 ways as a sum of consecutive naturals, for example, 205001 + ... + 205163.

It is an arithmetic number, because the mean of its divisors is an integer number (2189933).

Almost surely, 2^33428366 is an apocalyptic number.

33428366 is a deficient number, since it is larger than the sum of its proper divisors (19130026).

33428366 is a wasteful number, since it uses less digits than its factorization.

33428366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 267 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 33428366 is about 5781.7269046540. The cubic root of 33428366 is about 322.1353481130.

The spelling of 33428366 in words is "thirty-three million, four hundred twenty-eight thousand, three hundred sixty-six".