401431443 has 32 divisors (see below), whose sum is σ = 641335296. Its totient is φ = 218373408.

The previous prime is 401431441. The next prime is 401431477. The reversal of 401431443 is 344134104.

It is not a de Polignac number, because 401431443 - 2¹ = 401431441 is a prime.

It is a super-2 number, since 2×401431443² = 322294406858124498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401431441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105846 + ... + 109572.

It is an arithmetic number, because the mean of its divisors is an integer number (20041728).

Almost surely, 2^401431443 is an apocalyptic number.

401431443 is a deficient number, since it is larger than the sum of its proper divisors (239903853).

401431443 is a wasteful number, since it uses less digits than its factorization.

401431443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 401431443 is about 20035.7541160796. The cubic root of 401431443 is about 737.6841668954.

Adding to 401431443 its reverse (344134104), we get a palindrome (745565547).

The spelling of 401431443 in words is "four hundred one million, four hundred thirty-one thousand, four hundred forty-three".