441428969 has 2 divisors, whose sum is σ = 441428970. Its totient is φ = 441428968.

The previous prime is 441428959. The next prime is 441428993. The reversal of 441428969 is 969824144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372953344 + 68475625 = 19312^2 + 8275^2 .

It is a cyclic number.

It is not a de Polignac number, because 441428969 - 2²⁴ = 424651753 is a prime.

It is a super-2 number, since 2×441428969² = 389719069344805922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (441428909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220714484 + 220714485.

It is an arithmetic number, because the mean of its divisors is an integer number (220714485).

Almost surely, 2^441428969 is an apocalyptic number.

It is an amenable number.

441428969 is a deficient number, since it is larger than the sum of its proper divisors (1).

441428969 is an equidigital number, since it uses as much as digits as its factorization.

441428969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 441428969 is about 21010.2110650988. The cubic root of 441428969 is about 761.4129813722.

The spelling of 441428969 in words is "four hundred forty-one million, four hundred twenty-eight thousand, nine hundred sixty-nine".