23220026 has 4 divisors (see below), whose sum is σ = 34830042. Its totient is φ = 11610012.

The previous prime is 23220019. The next prime is 23220037. The reversal of 23220026 is 62002232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22572001 + 648025 = 4751^2 + 805^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23219986 and 23220013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805005 + ... + 5805008.

Almost surely, 2^23220026 is an apocalyptic number.

23220026 is a deficient number, since it is larger than the sum of its proper divisors (11610016).

23220026 is a wasteful number, since it uses less digits than its factorization.

23220026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610015.

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

The square root of 23220026 is about 4818.7162190774. The cubic root of 23220026 is about 285.2906688740.

Adding to 23220026 its reverse (62002232), we get a palindrome (85222258).

The spelling of 23220026 in words is "twenty-three million, two hundred twenty thousand, twenty-six".