22273427 has 8 divisors (see below), whose sum is σ = 24335472. Its totient is φ = 20217600.

The previous prime is 22273423. The next prime is 22273439. The reversal of 22273427 is 72437222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22273427 - 2² = 22273423 is a prime.

It is a super-2 number, since 2×22273427² = 992211100648658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22273427.

It is not an unprimeable number, because it can be changed into a prime (22273423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9227 + ... + 11387.

It is an arithmetic number, because the mean of its divisors is an integer number (3041934).

Almost surely, 2^22273427 is an apocalyptic number.

22273427 is a deficient number, since it is larger than the sum of its proper divisors (2062045).

22273427 is a wasteful number, since it uses less digits than its factorization.

22273427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109.

The product of its digits is 9408, while the sum is 29.

The square root of 22273427 is about 4719.4731697510. The cubic root of 22273427 is about 281.3599950337.

The spelling of 22273427 in words is "twenty-two million, two hundred seventy-three thousand, four hundred twenty-seven".