22430791 has 4 divisors (see below), whose sum is σ = 22450000. Its totient is φ = 22411584.

The previous prime is 22430789. The next prime is 22430831. The reversal of 22430791 is 19703422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19703422 = 2 ⋅9851711.

It is a cyclic number.

It is not a de Polignac number, because 22430791 - 2¹ = 22430789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22430711) 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 3 ways as a sum of consecutive naturals, for example, 7731 + ... + 10228.

It is an arithmetic number, because the mean of its divisors is an integer number (5612500).

Almost surely, 2^22430791 is an apocalyptic number.

22430791 is a deficient number, since it is larger than the sum of its proper divisors (19209).

22430791 is a wasteful number, since it uses less digits than its factorization.

22430791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19208.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22430791 is about 4736.1156024742. The cubic root of 22430791 is about 282.0210528688.

The spelling of 22430791 in words is "twenty-two million, four hundred thirty thousand, seven hundred ninety-one".