26321493 has 24 divisors (see below), whose sum is σ = 39261600. Its totient is φ = 15669280.

The previous prime is 26321447. The next prime is 26321507. The reversal of 26321493 is 39412362.

It is not a de Polignac number, because 26321493 - 2⁸ = 26321237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26321493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26321293) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 20803 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (1635900).

Almost surely, 2^26321493 is an apocalyptic number.

It is an amenable number.

26321493 is a deficient number, since it is larger than the sum of its proper divisors (12940107).

26321493 is a wasteful number, since it uses less digits than its factorization.

26321493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1302 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 26321493 is about 5130.4476412882. The cubic root of 26321493 is about 297.4656618325.

The spelling of 26321493 in words is "twenty-six million, three hundred twenty-one thousand, four hundred ninety-three".