22143419 has 4 divisors (see below), whose sum is σ = 22170960. Its totient is φ = 22115880.

The previous prime is 22143397. The next prime is 22143421. The reversal of 22143419 is 91434122.

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 22143419 - 2¹² = 22139323 is a prime.

It is a super-2 number, since 2×22143419² = 980662010019122, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (22143449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12527 + ... + 14184.

It is an arithmetic number, because the mean of its divisors is an integer number (5542740).

Almost surely, 2^22143419 is an apocalyptic number.

22143419 is a deficient number, since it is larger than the sum of its proper divisors (27541).

22143419 is an equidigital number, since it uses as much as digits as its factorization.

22143419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27540.

The product of its digits is 1728, while the sum is 26.

The square root of 22143419 is about 4705.6794408459. The cubic root of 22143419 is about 280.8115021073.

The spelling of 22143419 in words is "twenty-two million, one hundred forty-three thousand, four hundred nineteen".