23819772 has 12 divisors (see below), whose sum is σ = 55579496. Its totient is φ = 7939920.

The previous prime is 23819723. The next prime is 23819777. The reversal of 23819772 is 27791832.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 23819772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23819777) 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 3 ways as a sum of consecutive naturals, for example, 992479 + ... + 992502.

Almost surely, 2^23819772 is an apocalyptic number.

It is an amenable number.

23819772 is an abundant number, since it is smaller than the sum of its proper divisors (31759724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23819772 is a wasteful number, since it uses less digits than its factorization.

23819772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984988 (or 1984986 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 23819772 is about 4880.5503787995. The cubic root of 23819772 is about 287.7260608914.

The spelling of 23819772 in words is "twenty-three million, eight hundred nineteen thousand, seven hundred seventy-two".