26440536 has 16 divisors (see below), whose sum is σ = 66101400. Its totient is φ = 8813504.

The previous prime is 26440517. The next prime is 26440537. The reversal of 26440536 is 63504462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26440537) by changing a digit.

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, 550821 + ... + 550868.

Almost surely, 2^26440536 is an apocalyptic number.

It is an amenable number.

26440536 is an abundant number, since it is smaller than the sum of its proper divisors (39660864).

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

26440536 is a wasteful number, since it uses less digits than its factorization.

26440536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101698 (or 1101694 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 26440536 is about 5142.0361725682. The cubic root of 26440536 is about 297.9134322066.

Adding to 26440536 its reverse (63504462), we get a palindrome (89944998).

The spelling of 26440536 in words is "twenty-six million, four hundred forty thousand, five hundred thirty-six".