244143356421 has 8 divisors (see below), whose sum is σ = 325734632800. Its totient is φ = 162657158832.

The previous prime is 244143356411. The next prime is 244143356449. The reversal of 244143356421 is 124653341442.

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

It is not a de Polignac number, because 244143356421 - 2⁵ = 244143356389 is a prime.

It is a super-2 number, since 2×244143356421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244143356421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244143356411) 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, 26264275 + ... + 26273568.

It is an arithmetic number, because the mean of its divisors is an integer number (40716829100).

Almost surely, 2^244143356421 is an apocalyptic number.

It is an amenable number.

244143356421 is a deficient number, since it is larger than the sum of its proper divisors (81591276379).

244143356421 is a wasteful number, since it uses less digits than its factorization.

244143356421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52539395.

The product of its digits is 276480, while the sum is 39.

Adding to 244143356421 its reverse (124653341442), we get a palindrome (368796697863).

The spelling of 244143356421 in words is "two hundred forty-four billion, one hundred forty-three million, three hundred fifty-six thousand, four hundred twenty-one".