22190347 has 4 divisors (see below), whose sum is σ = 23358280. Its totient is φ = 21022416.

The previous prime is 22190297. The next prime is 22190351. The reversal of 22190347 is 74309122.

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

It is a cyclic number.

It is not a de Polignac number, because 22190347 - 2¹⁹ = 21666059 is a prime.

It is a super-2 number, since 2×22190347² = 984822999960818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22190387) by changing a digit.

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, 583938 + ... + 583975.

It is an arithmetic number, because the mean of its divisors is an integer number (5839570).

Almost surely, 2^22190347 is an apocalyptic number.

22190347 is a deficient number, since it is larger than the sum of its proper divisors (1167933).

22190347 is a wasteful number, since it uses less digits than its factorization.

22190347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167932.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22190347 is about 4710.6631168021. The cubic root of 22190347 is about 281.0097344264.

Adding to 22190347 its reverse (74309122), we get a palindrome (96499469).

The spelling of 22190347 in words is "twenty-two million, one hundred ninety thousand, three hundred forty-seven".