445069493 has 4 divisors (see below), whose sum is σ = 485530368. Its totient is φ = 404608620.

The previous prime is 445069483. The next prime is 445069519. The reversal of 445069493 is 394960544.

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 445069493 - 2²⁰ = 444020917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445069403) 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, 20230421 + ... + 20230442.

It is an arithmetic number, because the mean of its divisors is an integer number (121382592).

Almost surely, 2^445069493 is an apocalyptic number.

It is an amenable number.

445069493 is a deficient number, since it is larger than the sum of its proper divisors (40460875).

445069493 is a wasteful number, since it uses less digits than its factorization.

445069493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40460874.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 445069493 is about 21096.6701874964. The cubic root of 445069493 is about 763.5004117829.

The spelling of 445069493 in words is "four hundred forty-five million, sixty-nine thousand, four hundred ninety-three".