26404420 has 24 divisors (see below), whose sum is σ = 63370944. Its totient is φ = 9052896.

The previous prime is 26404397. The next prime is 26404423. The reversal of 26404420 is 2440462.

It is a junction number, because it is equal to n+sod(n) for n = 26404391 and 26404400.

It is not an unprimeable number, because it can be changed into a prime (26404423) by changing a digit.

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, 94162 + ... + 94441.

It is an arithmetic number, because the mean of its divisors is an integer number (2640456).

Almost surely, 2^26404420 is an apocalyptic number.

26404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26404420 is an abundant number, since it is smaller than the sum of its proper divisors (36966524).

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

26404420 is a wasteful number, since it uses less digits than its factorization.

26404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188619 (or 188617 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 26404420 is about 5138.5231341311. The cubic root of 26404420 is about 297.7777271396. Note that the first 4 decimals are identical.

Adding to 26404420 its reverse (2440462), we get a palindrome (28844882).

The spelling of 26404420 in words is "twenty-six million, four hundred four thousand, four hundred twenty".