22470749 has 16 divisors (see below), whose sum is σ = 27302400. Its totient is φ = 18064944.

The previous prime is 22470743. The next prime is 22470761. The reversal of 22470749 is 94707422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22470749 - 2⁴ = 22470733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22470743) 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 15 ways as a sum of consecutive naturals, for example, 13442 + ... + 15020.

It is an arithmetic number, because the mean of its divisors is an integer number (1706400).

Almost surely, 2^22470749 is an apocalyptic number.

It is an amenable number.

22470749 is a deficient number, since it is larger than the sum of its proper divisors (4831651).

22470749 is a wasteful number, since it uses less digits than its factorization.

22470749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 22470749 is about 4740.3321613575. The cubic root of 22470749 is about 282.1884167445.

The spelling of 22470749 in words is "twenty-two million, four hundred seventy thousand, seven hundred forty-nine".