26820453 has 16 divisors (see below), whose sum is σ = 39122496. Its totient is φ = 16208640.

The previous prime is 26820439. The next prime is 26820473. The reversal of 26820453 is 35402862.

It is not a de Polignac number, because 26820453 - 2⁸ = 26820197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26820453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26820473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13351 + ... + 15227.

It is an arithmetic number, because the mean of its divisors is an integer number (2445156).

Almost surely, 2^26820453 is an apocalyptic number.

It is an amenable number.

26820453 is a deficient number, since it is larger than the sum of its proper divisors (12302043).

26820453 is a wasteful number, since it uses less digits than its factorization.

26820453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 26820453 is about 5178.8466862806. The cubic root of 26820453 is about 299.3335316071. Note that the first 3 decimals are identical.

The spelling of 26820453 in words is "twenty-six million, eight hundred twenty thousand, four hundred fifty-three".