26217668 has 12 divisors (see below), whose sum is σ = 45993360. Its totient is φ = 13076712.

The previous prime is 26217649. The next prime is 26217671. The reversal of 26217668 is 86671262.

It is a happy number.

It is a super-2 number, since 2×26217668² = 1374732230716448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6146 + ... + 9497.

It is an arithmetic number, because the mean of its divisors is an integer number (3832780).

Almost surely, 2^26217668 is an apocalyptic number.

It is an amenable number.

26217668 is a deficient number, since it is larger than the sum of its proper divisors (19775692).

26217668 is a wasteful number, since it uses less digits than its factorization.

26217668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16066 (or 16064 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 26217668 is about 5120.3191306793. The cubic root of 26217668 is about 297.0740291680.

The spelling of 26217668 in words is "twenty-six million, two hundred seventeen thousand, six hundred sixty-eight".