26690648 has 16 divisors (see below), whose sum is σ = 50100000. Its totient is φ = 13330656.

The previous prime is 26690639. The next prime is 26690681. The reversal of 26690648 is 84609662.

It is a super-3 number, since 3×26690648³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12353 + ... + 14351.

It is an arithmetic number, because the mean of its divisors is an integer number (3131250).

Almost surely, 2^26690648 is an apocalyptic number.

It is an amenable number.

26690648 is a deficient number, since it is larger than the sum of its proper divisors (23409352).

26690648 is a wasteful number, since it uses less digits than its factorization.

26690648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 26690648 is about 5166.2992557536. The cubic root of 26690648 is about 298.8498479881.

The spelling of 26690648 in words is "twenty-six million, six hundred ninety thousand, six hundred forty-eight".