244213431431 has 8 divisors (see below), whose sum is σ = 245532805104. Its totient is φ = 242894615040.

The previous prime is 244213431421. The next prime is 244213431503. The reversal of 244213431431 is 134134312442.

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

It is a cyclic number.

It is not a de Polignac number, because 244213431431 - 2²² = 244209237127 is a prime.

It is a super-2 number, since 2×244213431431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244213431421) 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, 754940 + ... + 1028766.

It is an arithmetic number, because the mean of its divisors is an integer number (30691600638).

Almost surely, 2^244213431431 is an apocalyptic number.

244213431431 is a deficient number, since it is larger than the sum of its proper divisors (1319373673).

244213431431 is a wasteful number, since it uses less digits than its factorization.

244213431431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278641.

The product of its digits is 27648, while the sum is 32.

Adding to 244213431431 its reverse (134134312442), we get a palindrome (378347743873).

The spelling of 244213431431 in words is "two hundred forty-four billion, two hundred thirteen million, four hundred thirty-one thousand, four hundred thirty-one".