26440256 has 14 divisors (see below), whose sum is σ = 52467510. Its totient is φ = 13220096.

The previous prime is 26440247. The next prime is 26440261. The reversal of 26440256 is 65204462.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 4910656 = 4640^2 + 2216^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206501 + ... + 206628.

Almost surely, 2^26440256 is an apocalyptic number.

It is an amenable number.

26440256 is a deficient number, since it is larger than the sum of its proper divisors (26027254).

26440256 is an equidigital number, since it uses as much as digits as its factorization.

26440256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413141 (or 413131 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 26440256 is about 5142.0089459277. The cubic root of 26440256 is about 297.9123805883.

The spelling of 26440256 in words is "twenty-six million, four hundred forty thousand, two hundred fifty-six".