22740453 has 32 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 14472000.

The previous prime is 22740439. The next prime is 22740457. The reversal of 22740453 is 35404722.

It is not a de Polignac number, because 22740453 - 2⁸ = 22740197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22740457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84403 + ... + 84671.

It is an arithmetic number, because the mean of its divisors is an integer number (1101600).

Almost surely, 2^22740453 is an apocalyptic number.

It is an amenable number.

22740453 is a deficient number, since it is larger than the sum of its proper divisors (12510747).

22740453 is a wasteful number, since it uses less digits than its factorization.

22740453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 22740453 is about 4768.6951045333. The cubic root of 22740453 is about 283.3129137149.

The spelling of 22740453 in words is "twenty-two million, seven hundred forty thousand, four hundred fifty-three".