26385864 has 16 divisors (see below), whose sum is σ = 65964720. Its totient is φ = 8795280.

The previous prime is 26385857. The next prime is 26385869. The reversal of 26385864 is 46858362.

It is not an unprimeable number, because it can be changed into a prime (26385869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549682 + ... + 549729.

It is an arithmetic number, because the mean of its divisors is an integer number (4122795).

Almost surely, 2^26385864 is an apocalyptic number.

26385864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26385864 is an abundant number, since it is smaller than the sum of its proper divisors (39578856).

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

26385864 is a wasteful number, since it uses less digits than its factorization.

26385864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099420 (or 1099416 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 26385864 is about 5136.7172396386. The cubic root of 26385864 is about 297.7079552555.

The spelling of 26385864 in words is "twenty-six million, three hundred eighty-five thousand, eight hundred sixty-four".