22019674 has 4 divisors (see below), whose sum is σ = 33029514. Its totient is φ = 11009836.

The previous prime is 22019639. The next prime is 22019677. The reversal of 22019674 is 47691022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16752649 + 5267025 = 4093^2 + 2295^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22019677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5504917 + ... + 5504920.

Almost surely, 2^22019674 is an apocalyptic number.

22019674 is a deficient number, since it is larger than the sum of its proper divisors (11009840).

22019674 is a wasteful number, since it uses less digits than its factorization.

22019674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11009839.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22019674 is about 4692.5125466002. The cubic root of 22019674 is about 280.2874344246.

The spelling of 22019674 in words is "twenty-two million, nineteen thousand, six hundred seventy-four".