401443429 has 2 divisors, whose sum is σ = 401443430. Its totient is φ = 401443428.

The previous prime is 401443421. The next prime is 401443439. The reversal of 401443429 is 924344104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388011204 + 13432225 = 19698^2 + 3665^2 .

It is a cyclic number.

It is not a de Polignac number, because 401443429 - 2³ = 401443421 is a prime.

It is a super-2 number, since 2×401443429² = 322313653374556082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401443429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401443421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200721714 + 200721715.

It is an arithmetic number, because the mean of its divisors is an integer number (200721715).

Almost surely, 2^401443429 is an apocalyptic number.

It is an amenable number.

401443429 is a deficient number, since it is larger than the sum of its proper divisors (1).

401443429 is an equidigital number, since it uses as much as digits as its factorization.

401443429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 401443429 is about 20036.0532291168. The cubic root of 401443429 is about 737.6915087837.

The spelling of 401443429 in words is "four hundred one million, four hundred forty-three thousand, four hundred twenty-nine".