22250042 has 8 divisors (see below), whose sum is σ = 35338356. Its totient is φ = 10470592.

The previous prime is 22250027. The next prime is 22250069. The reversal of 22250042 is 24005222.

It can be written as a sum of positive squares in 2 ways, for example, as 18567481 + 3682561 = 4309^2 + 1919^2 .

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

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 22250042.

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, 327173 + ... + 327240.

Almost surely, 2^22250042 is an apocalyptic number.

22250042 is a deficient number, since it is larger than the sum of its proper divisors (13088314).

22250042 is a wasteful number, since it uses less digits than its factorization.

22250042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654432.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22250042 is about 4716.9950180173. The cubic root of 22250042 is about 281.2614933904.

Adding to 22250042 its reverse (24005222), we get a palindrome (46255264).

The spelling of 22250042 in words is "twenty-two million, two hundred fifty thousand, forty-two".