26000664 has 48 divisors (see below), whose sum is σ = 68625720. Its totient is φ = 8208000.

The previous prime is 26000647. The next prime is 26000669. The reversal of 26000664 is 46600062.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26000669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7164 + ... + 10164.

Almost surely, 2^26000664 is an apocalyptic number.

26000664 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 26000664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34312860).

26000664 is an abundant number, since it is smaller than the sum of its proper divisors (42625056).

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

26000664 is a wasteful number, since it uses less digits than its factorization.

26000664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 26000664 is about 5099.0846237340. The cubic root of 26000664 is about 296.2521287390.

The spelling of 26000664 in words is "twenty-six million, six hundred sixty-four", and thus it is an aban number.