23216007424 has 81 divisors (see below), whose sum is σ = 47309977897. Its totient is φ = 11370309632.

The previous prime is 23216007401. The next prime is 23216007433. The reversal of 23216007424 is 42470061232.

It is a happy number.

The square root of 23216007424 is 152368.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4457965824 + 18758041600 = 66768^2 + 136960^2 .

It is a super-2 number, since 2×23216007424² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 216971979 + ... + 216972085.

Almost surely, 2^23216007424 is an apocalyptic number.

23216007424 is the 152368-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23216007424

23216007424 is an abundant number, since it is smaller than the sum of its proper divisors (24093970473).

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

23216007424 is an frugal number, since it uses more digits than its factorization.

23216007424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 23216007424 its reverse (42470061232), we get a palindrome (65686068656).

The spelling of 23216007424 in words is "twenty-three billion, two hundred sixteen million, seven thousand, four hundred twenty-four".