26805804 has 48 divisors (see below), whose sum is σ = 66933216. Its totient is φ = 8320000.

The previous prime is 26805803. The next prime is 26805811. The reversal of 26805804 is 40850862.

It is a super-2 number, since 2×26805804² = 1437102256172832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26805803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19954 + ... + 21254.

It is an arithmetic number, because the mean of its divisors is an integer number (1394442).

Almost surely, 2^26805804 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 26805804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33466608).

26805804 is an abundant number, since it is smaller than the sum of its proper divisors (40127412).

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

26805804 is a wasteful number, since it uses less digits than its factorization.

26805804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 26805804 is about 5177.4321820764. The cubic root of 26805804 is about 299.2790242568.

The spelling of 26805804 in words is "twenty-six million, eight hundred five thousand, eight hundred four".