23216430 has 32 divisors (see below), whose sum is σ = 58143744. Its totient is φ = 5921696.

The previous prime is 23216429. The next prime is 23216447. The reversal of 23216430 is 3461232.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23216397 and 23216406.

It is a congruent number.

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, 16134 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (1816992).

Almost surely, 2^23216430 is an apocalyptic number.

23216430 is an abundant number, since it is smaller than the sum of its proper divisors (34927314).

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

23216430 is a wasteful number, since it uses less digits than its factorization.

23216430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33680.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23216430 is about 4818.3430762037. The cubic root of 23216430 is about 285.2759408082.

Adding to 23216430 its reverse (3461232), we get a palindrome (26677662).

The spelling of 23216430 in words is "twenty-three million, two hundred sixteen thousand, four hundred thirty".