244430421 has 8 divisors (see below), whose sum is σ = 343060320. Its totient is φ = 154377072.

The previous prime is 244430419. The next prime is 244430491. The reversal of 244430421 is 124034442.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 244430421 - 2¹ = 244430419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 244430391 and 244430400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244430491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2144070 + ... + 2144183.

It is an arithmetic number, because the mean of its divisors is an integer number (42882540).

Almost surely, 2^244430421 is an apocalyptic number.

It is an amenable number.

244430421 is a deficient number, since it is larger than the sum of its proper divisors (98629899).

244430421 is a wasteful number, since it uses less digits than its factorization.

244430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288275.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 244430421 is about 15634.2707217190. The cubic root of 244430421 is about 625.2471948053.

Adding to 244430421 its reverse (124034442), we get a palindrome (368464863).

The spelling of 244430421 in words is "two hundred forty-four million, four hundred thirty thousand, four hundred twenty-one".