33021242 has 16 divisors (see below), whose sum is σ = 53865000. Its totient is φ = 15118848.

The previous prime is 33021239. The next prime is 33021251. The reversal of 33021242 is 24212033.

It can be written as a sum of positive squares in 4 ways, for example, as 32501401 + 519841 = 5701^2 + 721^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 33021242.

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, 11867 + ... + 14382.

Almost surely, 2^33021242 is an apocalyptic number.

33021242 is a deficient number, since it is larger than the sum of its proper divisors (20843758).

33021242 is a wasteful number, since it uses less digits than its factorization.

33021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26305.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 33021242 is about 5746.4112278882. The cubic root of 33021242 is about 320.8222409088.

Adding to 33021242 its reverse (24212033), we get a palindrome (57233275).

The spelling of 33021242 in words is "thirty-three million, twenty-one thousand, two hundred forty-two".