26261020 has 24 divisors (see below), whose sum is σ = 55906704. Its totient is φ = 10359936.

The previous prime is 26260987. The next prime is 26261041. The reversal of 26261020 is 2016262.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7534 + ... + 10453.

It is an arithmetic number, because the mean of its divisors is an integer number (2329446).

Almost surely, 2^26261020 is an apocalyptic number.

26261020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26261020 is an abundant number, since it is smaller than the sum of its proper divisors (29645684).

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

26261020 is a wasteful number, since it uses less digits than its factorization.

26261020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18069 (or 18067 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 26261020 is about 5124.5507120137. The cubic root of 26261020 is about 297.2376804038.

Adding to 26261020 its reverse (2016262), we get a palindrome (28277282).

The spelling of 26261020 in words is "twenty-six million, two hundred sixty-one thousand, twenty".