122643424 has 24 divisors (see below), whose sum is σ = 244172880. Its totient is φ = 60631296.

The previous prime is 122643413. The next prime is 122643467. The reversal of 122643424 is 424346221.

It is a junction number, because it is equal to n+sod(n) for n = 122643392 and 122643401.

It is a congruent number.

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, 18684 + ... + 24379.

It is an arithmetic number, because the mean of its divisors is an integer number (10173870).

Almost surely, 2^122643424 is an apocalyptic number.

It is an amenable number.

122643424 is a deficient number, since it is larger than the sum of its proper divisors (121529456).

122643424 is an equidigital number, since it uses as much as digits as its factorization.

122643424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43162 (or 43154 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 122643424 is about 11074.4491510865. The cubic root of 122643424 is about 496.8379436204.

Adding to 122643424 its reverse (424346221), we get a palindrome (546989645).

The spelling of 122643424 in words is "one hundred twenty-two million, six hundred forty-three thousand, four hundred twenty-four".