401431223400344 has 8 divisors (see below), whose sum is σ = 752683543875660. Its totient is φ = 200715611700168.

The previous prime is 401431223400341. The next prime is 401431223400379. The reversal of 401431223400344 is 443004322134104.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×401431223400344² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401431223400341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25089451462514 + ... + 25089451462529.

Almost surely, 2^{401431223400344} is an apocalyptic number.

It is an amenable number.

401431223400344 is a deficient number, since it is larger than the sum of its proper divisors (351252320475316).

401431223400344 is a wasteful number, since it uses less digits than its factorization.

401431223400344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50178902925049 (or 50178902925045 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 401431223400344 its reverse (443004322134104), we get a palindrome (844435545534448).

The spelling of 401431223400344 in words is "four hundred one trillion, four hundred thirty-one billion, two hundred twenty-three million, four hundred thousand, three hundred forty-four".