26428144 has 40 divisors (see below), whose sum is σ = 53032320. Its totient is φ = 12750528.

The previous prime is 26428139. The next prime is 26428159. The reversal of 26428144 is 44182462.

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 7 ways as a sum of consecutive naturals, for example, 73437 + ... + 73795.

It is an arithmetic number, because the mean of its divisors is an integer number (1325808).

Almost surely, 2^26428144 is an apocalyptic number.

It is an amenable number.

26428144 is an abundant number, since it is smaller than the sum of its proper divisors (26604176).

26428144 is a wasteful number, since it uses less digits than its factorization.

26428144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 511 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 26428144 is about 5140.8310612196. The cubic root of 26428144 is about 297.8668834762.

The spelling of 26428144 in words is "twenty-six million, four hundred twenty-eight thousand, one hundred forty-four".