26438420 has 24 divisors (see below), whose sum is σ = 55950048. Its totient is φ = 10493600.

The previous prime is 26438413. The next prime is 26438441. The reversal of 26438420 is 2483462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2426 + ... + 7665.

It is an arithmetic number, because the mean of its divisors is an integer number (2331252).

Almost surely, 2^26438420 is an apocalyptic number.

26438420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26438420 is an abundant number, since it is smaller than the sum of its proper divisors (29511628).

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

26438420 is a wasteful number, since it uses less digits than its factorization.

26438420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231 (or 10229 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 26438420 is about 5141.8304133839. The cubic root of 26438420 is about 297.9054847928.

The spelling of 26438420 in words is "twenty-six million, four hundred thirty-eight thousand, four hundred twenty".