445000023 has 12 divisors (see below), whose sum is σ = 692222440. Its totient is φ = 273846096.

The previous prime is 445000001. The next prime is 445000027. The reversal of 445000023 is 320000544.

It is a happy number.

It is not a de Polignac number, because 445000023 - 2⁸ = 444999767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445000027) 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, 1901593 + ... + 1901826.

Almost surely, 2^445000023 is an apocalyptic number.

445000023 is a deficient number, since it is larger than the sum of its proper divisors (247222417).

445000023 is a wasteful number, since it uses less digits than its factorization.

445000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803438 (or 3803435 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 445000023 is about 21095.0236548813. The cubic root of 445000023 is about 763.4606853025.

Adding to 445000023 its reverse (320000544), we get a palindrome (765000567).

The spelling of 445000023 in words is "four hundred forty-five million, twenty-three", and thus it is an aban number.