26868864 has 64 divisors (see below), whose sum is σ = 77870880. Its totient is φ = 8140800.

The previous prime is 26868841. The next prime is 26868871. The reversal of 26868864 is 46886862.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044 + ... + 7404.

Almost surely, 2^26868864 is an apocalyptic number.

26868864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26868864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38935440).

26868864 is an abundant number, since it is smaller than the sum of its proper divisors (51002016).

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

26868864 is a wasteful number, since it uses less digits than its factorization.

26868864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6377 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 26868864 is about 5183.5184961568. The cubic root of 26868864 is about 299.5135226702.

The spelling of 26868864 in words is "twenty-six million, eight hundred sixty-eight thousand, eight hundred sixty-four".