22013242 has 8 divisors (see below), whose sum is σ = 33052500. Its totient is φ = 10995744.

The previous prime is 22013239. The next prime is 22013273. The reversal of 22013242 is 24231022.

It can be written as a sum of positive squares in 2 ways, for example, as 17969121 + 4044121 = 4239^2 + 2011^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2617 + ... + 7132.

Almost surely, 2^22013242 is an apocalyptic number.

22013242 is a deficient number, since it is larger than the sum of its proper divisors (11039258).

22013242 is a wasteful number, since it uses less digits than its factorization.

22013242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22013242 is about 4691.8271494163. The cubic root of 22013242 is about 280.2601408879.

Adding to 22013242 its reverse (24231022), we get a palindrome (46244264).

The spelling of 22013242 in words is "twenty-two million, thirteen thousand, two hundred forty-two".