124442320 has 20 divisors (see below), whose sum is σ = 289328580. Its totient is φ = 49776896.

The previous prime is 124442303. The next prime is 124442321. The reversal of 124442320 is 23244421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24522304 + 99920016 = 4952^2 + 9996^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 124442291 and 124442300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124442321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777685 + ... + 777844.

It is an arithmetic number, because the mean of its divisors is an integer number (14466429).

Almost surely, 2^124442320 is an apocalyptic number.

124442320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124442320 is an abundant number, since it is smaller than the sum of its proper divisors (164886260).

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

124442320 is a wasteful number, since it uses less digits than its factorization.

124442320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555542 (or 1555536 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 124442320 is about 11155.3718001687. The cubic root of 124442320 is about 499.2553181151.

Adding to 124442320 its reverse (23244421), we get a palindrome (147686741).

The spelling of 124442320 in words is "one hundred twenty-four million, four hundred forty-two thousand, three hundred twenty".