244400220431 has 8 divisors (see below), whose sum is σ = 251117923200. Its totient is φ = 237688427808.

The previous prime is 244400220409. The next prime is 244400220437. The reversal of 244400220431 is 134022004442.

It is a happy number.

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 244400220431 - 2²⁶ = 244333111567 is a prime.

It is a super-2 number, since 2×244400220431² (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 244400220431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244400220437) 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, 1393631 + ... + 1559168.

It is an arithmetic number, because the mean of its divisors is an integer number (31389740400).

Almost surely, 2^244400220431 is an apocalyptic number.

244400220431 is a deficient number, since it is larger than the sum of its proper divisors (6717702769).

244400220431 is a wasteful number, since it uses less digits than its factorization.

244400220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955073.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 244400220431 its reverse (134022004442), we get a palindrome (378422224873).

The spelling of 244400220431 in words is "two hundred forty-four billion, four hundred million, two hundred twenty thousand, four hundred thirty-one".