26530020 has 72 divisors (see below), whose sum is σ = 87796800. Its totient is φ = 6431040.

The previous prime is 26530001. The next prime is 26530033. The reversal of 26530020 is 2003562.

It is a super-2 number, since 2×26530020² = 1407683922400800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 26529975 and 26530002.

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 23 ways as a sum of consecutive naturals, for example, 4720 + ... + 8679.

It is an arithmetic number, because the mean of its divisors is an integer number (1219400).

Almost surely, 2^26530020 is an apocalyptic number.

26530020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26530020 is an abundant number, since it is smaller than the sum of its proper divisors (61266780).

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

26530020 is a wasteful number, since it uses less digits than its factorization.

26530020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13425 (or 13420 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 26530020 is about 5150.7300453431. The cubic root of 26530020 is about 298.2491347823.

Adding to 26530020 its reverse (2003562), we get a palindrome (28533582).

The spelling of 26530020 in words is "twenty-six million, five hundred thirty thousand, twenty".