26402656 has 48 divisors (see below), whose sum is σ = 59754240. Its totient is φ = 11249280.

The previous prime is 26402653. The next prime is 26402659. The reversal of 26402656 is 65620462.

It is an interprime number because it is at equal distance from previous prime (26402653) and next prime (26402659).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69475 + ... + 69853.

It is an arithmetic number, because the mean of its divisors is an integer number (1244880).

Almost surely, 2^26402656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26402656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29877120).

26402656 is an abundant number, since it is smaller than the sum of its proper divisors (33351584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26402656 is a wasteful number, since it uses less digits than its factorization.

26402656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 26402656 is about 5138.3514866151. The cubic root of 26402656 is about 297.7710957800.

The spelling of 26402656 in words is "twenty-six million, four hundred two thousand, six hundred fifty-six".