401443223 has 2 divisors, whose sum is σ = 401443224. Its totient is φ = 401443222.

The previous prime is 401443193. The next prime is 401443241. The reversal of 401443223 is 322344104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401443223 - 2²⁰ = 400394647 is a prime.

It is a super-2 number, since 2×401443223² = 322313322585255458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401443283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200721611 + 200721612.

It is an arithmetic number, because the mean of its divisors is an integer number (200721612).

Almost surely, 2^401443223 is an apocalyptic number.

401443223 is a deficient number, since it is larger than the sum of its proper divisors (1).

401443223 is an equidigital number, since it uses as much as digits as its factorization.

401443223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 401443223 is about 20036.0480883831. The cubic root of 401443223 is about 737.6913826020.

Adding to 401443223 its reverse (322344104), we get a palindrome (723787327).

The spelling of 401443223 in words is "four hundred one million, four hundred forty-three thousand, two hundred twenty-three".