443145969 has 12 divisors (see below), whose sum is σ = 731542656. Its totient is φ = 253226232.

The previous prime is 443145959. The next prime is 443145977. The reversal of 443145969 is 969541344.

443145969 is a `hidden beast` number, since 4 + 43 + 14 + 596 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-443145969 is a prime.

It is a super-2 number, since 2×443145969² = 392756699681897922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (443145959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3516969 + ... + 3517094.

It is an arithmetic number, because the mean of its divisors is an integer number (60961888).

Almost surely, 2^443145969 is an apocalyptic number.

It is an amenable number.

443145969 is a deficient number, since it is larger than the sum of its proper divisors (288396687).

443145969 is a wasteful number, since it uses less digits than its factorization.

443145969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034076 (or 7034073 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 443145969 is about 21051.0324924931. The cubic root of 443145969 is about 762.3989117623.

The spelling of 443145969 in words is "four hundred forty-three million, one hundred forty-five thousand, nine hundred sixty-nine".