26290648 has 8 divisors (see below), whose sum is σ = 49294980. Its totient is φ = 13145320.

The previous prime is 26290613. The next prime is 26290657. The reversal of 26290648 is 84609262.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×26290648³ (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 as a sum of consecutive naturals, namely, 1643158 + ... + 1643173.

Almost surely, 2^26290648 is an apocalyptic number.

It is an amenable number.

26290648 is a deficient number, since it is larger than the sum of its proper divisors (23004332).

26290648 is a wasteful number, since it uses less digits than its factorization.

26290648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286337 (or 3286333 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 26290648 is about 5127.4406871265. The cubic root of 26290648 is about 297.3494207726.

The spelling of 26290648 in words is "twenty-six million, two hundred ninety thousand, six hundred forty-eight".