26804890 has 32 divisors (see below), whose sum is σ = 57542400. Its totient is φ = 8790144.

The previous prime is 26804879. The next prime is 26804893. The reversal of 26804890 is 9840862.

It is not an unprimeable number, because it can be changed into a prime (26804893) 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, 6715 + ... + 9934.

It is an arithmetic number, because the mean of its divisors is an integer number (1798200).

Almost surely, 2^26804890 is an apocalyptic number.

26804890 is an abundant number, since it is smaller than the sum of its proper divisors (30737510).

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

26804890 is a wasteful number, since it uses less digits than its factorization.

26804890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16686.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 26804890 is about 5177.3439136298. The cubic root of 26804890 is about 299.2756227032.

The spelling of 26804890 in words is "twenty-six million, eight hundred four thousand, eight hundred ninety".