445442969 has 4 divisors (see below), whose sum is σ = 445571280. Its totient is φ = 445314660.

The previous prime is 445442957. The next prime is 445443023. The reversal of 445442969 is 969244544.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445442969 - 2⁸ = 445442713 is a prime.

It is a super-2 number, since 2×445442969² = 396838877263069922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445444969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58799 + ... + 65940.

It is an arithmetic number, because the mean of its divisors is an integer number (111392820).

Almost surely, 2^445442969 is an apocalyptic number.

It is an amenable number.

445442969 is a deficient number, since it is larger than the sum of its proper divisors (128311).

445442969 is a wasteful number, since it uses less digits than its factorization.

445442969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128310.

The product of its digits is 1244160, while the sum is 47.

The square root of 445442969 is about 21105.5198704036. The cubic root of 445442969 is about 763.7139135404.

The spelling of 445442969 in words is "four hundred forty-five million, four hundred forty-two thousand, nine hundred sixty-nine".