213444424 has 16 divisors (see below), whose sum is σ = 413118720. Its totient is φ = 103279440.

The previous prime is 213444419. The next prime is 213444463. The reversal of 213444424 is 424444312.

213444424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213444392 and 213444401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430084 + ... + 430579.

It is an arithmetic number, because the mean of its divisors is an integer number (25819920).

Almost surely, 2^213444424 is an apocalyptic number.

It is an amenable number.

213444424 is a deficient number, since it is larger than the sum of its proper divisors (199674296).

213444424 is a wasteful number, since it uses less digits than its factorization.

213444424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860700 (or 860696 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 213444424 is about 14609.7373008552. The cubic root of 213444424 is about 597.6243320099.

Adding to 213444424 its reverse (424444312), we get a palindrome (637888736).

The spelling of 213444424 in words is "two hundred thirteen million, four hundred forty-four thousand, four hundred twenty-four".