26867820 has 192 divisors, whose sum is σ = 94058496. Its totient is φ = 5591040.

The previous prime is 26867801. The next prime is 26867831. The reversal of 26867820 is 2876862.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 378385 + ... + 378455.

It is an arithmetic number, because the mean of its divisors is an integer number (489888).

Almost surely, 2^26867820 is an apocalyptic number.

26867820 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 26867820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47029248).

26867820 is an abundant number, since it is smaller than the sum of its proper divisors (67190676).

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

26867820 is a wasteful number, since it uses less digits than its factorization.

26867820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 26867820 is about 5183.4177913805. The cubic root of 26867820 is about 299.5096433824.

The spelling of 26867820 in words is "twenty-six million, eight hundred sixty-seven thousand, eight hundred twenty".