23219724 has 48 divisors (see below), whose sum is σ = 60238080. Its totient is φ = 6901440.

The previous prime is 23219689. The next prime is 23219731. The reversal of 23219724 is 42791232.

It is a junction number, because it is equal to n+sod(n) for n = 23219691 and 23219700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5337 + ... + 8655.

It is an arithmetic number, because the mean of its divisors is an integer number (1254960).

Almost surely, 2^23219724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23219724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30119040).

23219724 is an abundant number, since it is smaller than the sum of its proper divisors (37018356).

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

23219724 is a wasteful number, since it uses less digits than its factorization.

23219724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390 (or 3388 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 23219724 is about 4818.6848828285. The cubic root of 23219724 is about 285.2894320371.

It can be divided in two parts, 232197 and 24, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 23219724 in words is "twenty-three million, two hundred nineteen thousand, seven hundred twenty-four".