401401443 has 4 divisors (see below), whose sum is σ = 535201928. Its totient is φ = 267600960.

The previous prime is 401401417. The next prime is 401401447. The reversal of 401401443 is 344104104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 401401443 - 2¹⁷ = 401270371 is a prime.

It is a super-2 number, since 2×401401443² = 322246236884964498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401401447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66900238 + ... + 66900243.

It is an arithmetic number, because the mean of its divisors is an integer number (133800482).

Almost surely, 2^401401443 is an apocalyptic number.

401401443 is a deficient number, since it is larger than the sum of its proper divisors (133800485).

401401443 is a wasteful number, since it uses less digits than its factorization.

401401443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133800484.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 401401443 is about 20035.0054404784. The cubic root of 401401443 is about 737.6657900952.

Adding to 401401443 its reverse (344104104), we get a palindrome (745505547).

The spelling of 401401443 in words is "four hundred one million, four hundred one thousand, four hundred forty-three".