26808920 has 16 divisors (see below), whose sum is σ = 60320160. Its totient is φ = 10723552.

The previous prime is 26808913. The next prime is 26808923. The reversal of 26808920 is 2980862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26808923) 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, 335072 + ... + 335151.

It is an arithmetic number, because the mean of its divisors is an integer number (3770010).

Almost surely, 2^26808920 is an apocalyptic number.

26808920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26808920 is an abundant number, since it is smaller than the sum of its proper divisors (33511240).

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

26808920 is a wasteful number, since it uses less digits than its factorization.

26808920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670234 (or 670230 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 26808920 is about 5177.7330947047. The cubic root of 26808920 is about 299.2906202195.

The spelling of 26808920 in words is "twenty-six million, eight hundred eight thousand, nine hundred twenty".