26020820 has 48 divisors (see below), whose sum is σ = 65173248. Its totient is φ = 8532480.

The previous prime is 26020817. The next prime is 26020837. The reversal of 26020820 is 2802062.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 26020792 and 26020801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821 + ... + 7260.

It is an arithmetic number, because the mean of its divisors is an integer number (1357776).

Almost surely, 2^26020820 is an apocalyptic number.

26020820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26020820 is an abundant number, since it is smaller than the sum of its proper divisors (39152428).

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

26020820 is a wasteful number, since it uses less digits than its factorization.

26020820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120 (or 8118 counting only the distinct ones).

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

The square root of 26020820 is about 5101.0606740167. The cubic root of 26020820 is about 296.3286615995.

Adding to 26020820 its reverse (2802062), we get a palindrome (28822882).

The spelling of 26020820 in words is "twenty-six million, twenty thousand, eight hundred twenty".