26090620 has 12 divisors (see below), whose sum is σ = 54790344. Its totient is φ = 10436240.

The previous prime is 26090611. The next prime is 26090663. The reversal of 26090620 is 2609062.

It is a zygodrome in base 2.

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 3 ways as a sum of consecutive naturals, for example, 652246 + ... + 652285.

It is an arithmetic number, because the mean of its divisors is an integer number (4565862).

Almost surely, 2^26090620 is an apocalyptic number.

26090620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26090620 is an abundant number, since it is smaller than the sum of its proper divisors (28699724).

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

26090620 is a wasteful number, since it uses less digits than its factorization.

26090620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304540 (or 1304538 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 26090620 is about 5107.8978063387. The cubic root of 26090620 is about 296.5933890192.

Adding to 26090620 its reverse (2609062), we get a palindrome (28699682).

The spelling of 26090620 in words is "twenty-six million, ninety thousand, six hundred twenty".