22319474 has 4 divisors (see below), whose sum is σ = 33479214. Its totient is φ = 11159736.

The previous prime is 22319459. The next prime is 22319491. The reversal of 22319474 is 47491322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47491322 = 2 ⋅23745661.

It can be written as a sum of positive squares in only one way, i.e., 11854249 + 10465225 = 3443^2 + 3235^2 .

It is a super-3 number, since 3×22319474³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22319474.

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 as a sum of consecutive naturals, namely, 5579867 + ... + 5579870.

Almost surely, 2^22319474 is an apocalyptic number.

22319474 is a deficient number, since it is larger than the sum of its proper divisors (11159740).

22319474 is a wasteful number, since it uses less digits than its factorization.

22319474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159739.

The product of its digits is 12096, while the sum is 32.

The square root of 22319474 is about 4724.3490556901. The cubic root of 22319474 is about 281.5537515651.

The spelling of 22319474 in words is "twenty-two million, three hundred nineteen thousand, four hundred seventy-four".