26604020 has 24 divisors (see below), whose sum is σ = 57796200. Its totient is φ = 10274432.

The previous prime is 26604013. The next prime is 26604023. The reversal of 26604020 is 2040662.

It can be written as a sum of positive squares in 4 ways, for example, as 4682896 + 21921124 = 2164^2 + 4682^2 .

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 = 26603983 and 26604001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26604023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22355 + ... + 23514.

It is an arithmetic number, because the mean of its divisors is an integer number (2408175).

Almost surely, 2^26604020 is an apocalyptic number.

26604020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26604020 is an abundant number, since it is smaller than the sum of its proper divisors (31192180).

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

26604020 is a wasteful number, since it uses less digits than its factorization.

26604020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45907 (or 45905 counting only the distinct ones).

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

The square root of 26604020 is about 5157.9084908517. The cubic root of 26604020 is about 298.5261787675.

Adding to 26604020 its reverse (2040662), we get a palindrome (28644682).

The spelling of 26604020 in words is "twenty-six million, six hundred four thousand, twenty".