26220620 has 12 divisors (see below), whose sum is σ = 55063344. Its totient is φ = 10488240.

The previous prime is 26220619. The next prime is 26220629. The reversal of 26220620 is 2602262.

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: 1311031 = 26220620 / (2 + 6 + 2 + 2 + 0 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 26220592 and 26220601.

It is not an unprimeable number, because it can be changed into a prime (26220629) 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, 655496 + ... + 655535.

It is an arithmetic number, because the mean of its divisors is an integer number (4588612).

Almost surely, 2^26220620 is an apocalyptic number.

26220620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26220620 is an abundant number, since it is smaller than the sum of its proper divisors (28842724).

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

26220620 is a wasteful number, since it uses less digits than its factorization.

26220620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311040 (or 1311038 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 26220620 is about 5120.6073858479. The cubic root of 26220620 is about 297.0851785148.

Adding to 26220620 its reverse (2602262), we get a palindrome (28822882).

The spelling of 26220620 in words is "twenty-six million, two hundred twenty thousand, six hundred twenty".