23219443 has 16 divisors (see below), whose sum is σ = 26449920. Its totient is φ = 20221344.

The previous prime is 23219437. The next prime is 23219473. The reversal of 23219443 is 34491232.

It is not a de Polignac number, because 23219443 - 2⁵ = 23219411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23219473) 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, 23130 + ... + 24112.

It is an arithmetic number, because the mean of its divisors is an integer number (1653120).

Almost surely, 2^23219443 is an apocalyptic number.

23219443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23219443 is a deficient number, since it is larger than the sum of its proper divisors (3230477).

23219443 is a wasteful number, since it uses less digits than its factorization.

23219443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098.

The product of its digits is 5184, while the sum is 28.

The square root of 23219443 is about 4818.6557254072. The cubic root of 23219443 is about 285.2882811957.

The spelling of 23219443 in words is "twenty-three million, two hundred nineteen thousand, four hundred forty-three".