23219748 has 72 divisors (see below), whose sum is σ = 62680800. Its totient is φ = 7226496.

The previous prime is 23219747. The next prime is 23219771. The reversal of 23219748 is 84791232.

It is a super-3 number, since 3×23219748³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23219747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56568 + ... + 56976.

Almost surely, 2^23219748 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 23219748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31340400).

23219748 is an abundant number, since it is smaller than the sum of its proper divisors (39461052).

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

23219748 is a wasteful number, since it uses less digits than its factorization.

23219748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 516 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 23219748 is about 4818.6873731339. The cubic root of 23219748 is about 285.2895303291.

The spelling of 23219748 in words is "twenty-three million, two hundred nineteen thousand, seven hundred forty-eight".