33407242 has 16 divisors (see below), whose sum is σ = 54771552. Its totient is φ = 15155920.

The previous prime is 33407239. The next prime is 33407267. The reversal of 33407242 is 24270433.

It is a super-2 number, since 2×33407242² = 2232087636093128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13773 + ... + 16015.

It is an arithmetic number, because the mean of its divisors is an integer number (3423222).

Almost surely, 2^33407242 is an apocalyptic number.

33407242 is a deficient number, since it is larger than the sum of its proper divisors (21364310).

33407242 is a wasteful number, since it uses less digits than its factorization.

33407242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 33407242 is about 5779.8998261216. The cubic root of 33407242 is about 322.0674793959.

Adding to 33407242 its reverse (24270433), we get a palindrome (57677675).

The spelling of 33407242 in words is "thirty-three million, four hundred seven thousand, two hundred forty-two".