33133028 has 6 divisors (see below), whose sum is σ = 57982806. Its totient is φ = 16566512.

The previous prime is 33133027. The next prime is 33133031. The reversal of 33133028 is 82033133.

It can be written as a sum of positive squares in only one way, i.e., 33085504 + 47524 = 5752^2 + 218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33132994 and 33133012.

It is not an unprimeable number, because it can be changed into a prime (33133027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4141625 + ... + 4141632.

It is an arithmetic number, because the mean of its divisors is an integer number (9663801).

Almost surely, 2^33133028 is an apocalyptic number.

It is an amenable number.

33133028 is a deficient number, since it is larger than the sum of its proper divisors (24849778).

33133028 is a wasteful number, since it uses less digits than its factorization.

33133028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283261 (or 8283259 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 33133028 is about 5756.1296024325. The cubic root of 33133028 is about 321.1838570443.

The spelling of 33133028 in words is "thirty-three million, one hundred thirty-three thousand, twenty-eight".