26884820 has 48 divisors (see below), whose sum is σ = 60419520. Its totient is φ = 10013184.

The previous prime is 26884783. The next prime is 26884831. The reversal of 26884820 is 2848862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36011 + ... + 36749.

It is an arithmetic number, because the mean of its divisors is an integer number (1258740).

Almost surely, 2^26884820 is an apocalyptic number.

26884820 is a gapful number since it is divisible by the number (20) 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 26884820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30209760).

26884820 is an abundant number, since it is smaller than the sum of its proper divisors (33534700).

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

26884820 is a wasteful number, since it uses less digits than its factorization.

26884820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 26884820 is about 5185.0573767317. The cubic root of 26884820 is about 299.5727993615.

The spelling of 26884820 in words is "twenty-six million, eight hundred eighty-four thousand, eight hundred twenty".