445271069 has 4 divisors (see below), whose sum is σ = 445453596. Its totient is φ = 445088544.

The previous prime is 445271059. The next prime is 445271081. The reversal of 445271069 is 960172544.

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

It can be written as a sum of positive squares in 2 ways, for example, as 365383225 + 79887844 = 19115^2 + 8938^2 .

It is a cyclic number.

It is not a de Polignac number, because 445271069 - 2¹² = 445266973 is a prime.

It is a super-2 number, since 2×445271069² = 396532649776805522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445271039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87554 + ... + 92499.

It is an arithmetic number, because the mean of its divisors is an integer number (111363399).

Almost surely, 2^445271069 is an apocalyptic number.

It is an amenable number.

445271069 is a deficient number, since it is larger than the sum of its proper divisors (182527).

445271069 is a wasteful number, since it uses less digits than its factorization.

445271069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182526.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 445271069 is about 21101.4470830794. The cubic root of 445271069 is about 763.6156598004.

The spelling of 445271069 in words is "four hundred forty-five million, two hundred seventy-one thousand, sixty-nine".