22266473 has 4 divisors (see below), whose sum is σ = 22429140. Its totient is φ = 22103808.

The previous prime is 22266469. The next prime is 22266479. The reversal of 22266473 is 37466222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37466222 = 2 ⋅18733111.

It can be written as a sum of positive squares in 2 ways, for example, as 12482089 + 9784384 = 3533^2 + 3128^2 .

It is a cyclic number.

It is not a de Polignac number, because 22266473 - 2² = 22266469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22266479) 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, 81128 + ... + 81401.

It is an arithmetic number, because the mean of its divisors is an integer number (5607285).

Almost surely, 2^22266473 is an apocalyptic number.

It is an amenable number.

22266473 is a deficient number, since it is larger than the sum of its proper divisors (162667).

22266473 is a wasteful number, since it uses less digits than its factorization.

22266473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162666.

The product of its digits is 24192, while the sum is 32.

The square root of 22266473 is about 4718.7363774638. The cubic root of 22266473 is about 281.3307107949.

The spelling of 22266473 in words is "twenty-two million, two hundred sixty-six thousand, four hundred seventy-three".