22143379 has 6 divisors (see below), whose sum is σ = 23370540. Its totient is φ = 20977596.

The previous prime is 22143371. The next prime is 22143383. The reversal of 22143379 is 97334122.

It is not a de Polignac number, because 22143379 - 2³ = 22143371 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 22143379.

It is not an unprimeable number, because it can be changed into a prime (22143371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30309 + ... + 31030.

It is an arithmetic number, because the mean of its divisors is an integer number (3895090).

Almost surely, 2^22143379 is an apocalyptic number.

22143379 is a deficient number, since it is larger than the sum of its proper divisors (1227161).

22143379 is an equidigital number, since it uses as much as digits as its factorization.

22143379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61377 (or 61358 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 22143379 is about 4705.6751906607. The cubic root of 22143379 is about 280.8113330207.

It can be divided in two parts, 22143 and 379, that added together give a palindrome (22522).

The spelling of 22143379 in words is "twenty-two million, one hundred forty-three thousand, three hundred seventy-nine".