22320026 has 4 divisors (see below), whose sum is σ = 33480042. Its totient is φ = 11160012.

The previous prime is 22320019. The next prime is 22320059. The reversal of 22320026 is 62002322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62002322 = 2 ⋅31001161.

It can be written as a sum of positive squares in only one way, i.e., 15217801 + 7102225 = 3901^2 + 2665^2 .

It is a super-3 number, since 3×22320026³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22319986 and 22320013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580005 + ... + 5580008.

Almost surely, 2^22320026 is an apocalyptic number.

22320026 is a deficient number, since it is larger than the sum of its proper divisors (11160016).

22320026 is a wasteful number, since it uses less digits than its factorization.

22320026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160015.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22320026 is about 4724.4074760757. The cubic root of 22320026 is about 281.5560726531.

Adding to 22320026 its reverse (62002322), we get a palindrome (84322348).

The spelling of 22320026 in words is "twenty-two million, three hundred twenty thousand, twenty-six".