26200820 has 12 divisors (see below), whose sum is σ = 55021764. Its totient is φ = 10480320.

The previous prime is 26200789. The next prime is 26200843. The reversal of 26200820 is 2800262.

It can be written as a sum of positive squares in 2 ways, for example, as 12687844 + 13512976 = 3562^2 + 3676^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1310041 = 26200820 / (2 + 6 + 2 + 0 + 0 + 8 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 26200792 and 26200801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655001 + ... + 655040.

It is an arithmetic number, because the mean of its divisors is an integer number (4585147).

Almost surely, 2^26200820 is an apocalyptic number.

26200820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26200820 is an abundant number, since it is smaller than the sum of its proper divisors (28820944).

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

26200820 is a wasteful number, since it uses less digits than its factorization.

26200820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310050 (or 1310048 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 26200820 is about 5118.6736563293. The cubic root of 26200820 is about 297.0103802862.

The spelling of 26200820 in words is "twenty-six million, two hundred thousand, eight hundred twenty".