26440028 has 12 divisors (see below), whose sum is σ = 46340280. Its totient is φ = 13199952.

The previous prime is 26439989. The next prime is 26440033. The reversal of 26440028 is 82004462.

It is a junction number, because it is equal to n+sod(n) for n = 26439979 and 26440006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826 + ... + 7497.

It is an arithmetic number, because the mean of its divisors is an integer number (3861690).

Almost surely, 2^26440028 is an apocalyptic number.

It is an amenable number.

26440028 is a deficient number, since it is larger than the sum of its proper divisors (19900252).

26440028 is a wasteful number, since it uses less digits than its factorization.

26440028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036 (or 10034 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 26440028 is about 5141.9867755567. The cubic root of 26440028 is about 297.9115242650.

The spelling of 26440028 in words is "twenty-six million, four hundred forty thousand, twenty-eight".