26390648 has 16 divisors (see below), whose sum is σ = 50633880. Its totient is φ = 12888288.

The previous prime is 26390569. The next prime is 26390653. The reversal of 26390648 is 84609362.

It is a super-3 number, since 3×26390648³ (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, 38015 + ... + 38702.

Almost surely, 2^26390648 is an apocalyptic number.

It is an amenable number.

26390648 is a deficient number, since it is larger than the sum of its proper divisors (24243232).

26390648 is a wasteful number, since it uses less digits than its factorization.

26390648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76766 (or 76762 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 26390648 is about 5137.1828855901. The cubic root of 26390648 is about 297.7259465657.

The spelling of 26390648 in words is "twenty-six million, three hundred ninety thousand, six hundred forty-eight".