23026666 has 16 divisors (see below), whose sum is σ = 38105928. Its totient is φ = 10368000.

The previous prime is 23026631. The next prime is 23026699. The reversal of 23026666 is 66662032.

It can be written as a sum of positive squares in 4 ways, for example, as 14784025 + 8242641 = 3845^2 + 2871^2 .

23026666 is a modest number, since divided by 6666 gives 2302 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9735 + ... + 11866.

Almost surely, 2^23026666 is an apocalyptic number.

23026666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23026666 is a deficient number, since it is larger than the sum of its proper divisors (15079262).

23026666 is a wasteful number, since it uses less digits than its factorization.

23026666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21657.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 23026666 is about 4798.6108406496. The cubic root of 23026666 is about 284.4965606930.

Adding to 23026666 its reverse (66662032), we get a palindrome (89688698).

It can be divided in two parts, 230 and 26666, that added together give a square (26896 = 164²).

The spelling of 23026666 in words is "twenty-three million, twenty-six thousand, six hundred sixty-six".