22033642 has 8 divisors (see below), whose sum is σ = 33101316. Its totient is φ = 10999872.

The previous prime is 22033633. The next prime is 22033651. The reversal of 22033642 is 24633022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22033633) and next prime (22033651).

It can be written as a sum of positive squares in 2 ways, for example, as 13905441 + 8128201 = 3729^2 + 2851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6783 + ... + 9490.

Almost surely, 2^22033642 is an apocalyptic number.

22033642 is a deficient number, since it is larger than the sum of its proper divisors (11067674).

22033642 is a wasteful number, since it uses less digits than its factorization.

22033642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16952.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 22033642 is about 4694.0006391137. Note that the first 3 decimals coincide. The cubic root of 22033642 is about 280.3466879108.

Adding to 22033642 its reverse (24633022), we get a palindrome (46666664).

The spelling of 22033642 in words is "twenty-two million, thirty-three thousand, six hundred forty-two".