445474164 has 24 divisors (see below), whose sum is σ = 1054081728. Its totient is φ = 146399680.

The previous prime is 445474163. The next prime is 445474177. The reversal of 445474164 is 461474544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445474163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260577 + ... + 262280.

It is an arithmetic number, because the mean of its divisors is an integer number (43920072).

Almost surely, 2^445474164 is an apocalyptic number.

It is an amenable number.

445474164 is an abundant number, since it is smaller than the sum of its proper divisors (608607564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445474164 is a wasteful number, since it uses less digits than its factorization.

445474164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522935 (or 522933 counting only the distinct ones).

The product of its digits is 215040, while the sum is 39.

The square root of 445474164 is about 21106.2588821420. The cubic root of 445474164 is about 763.7317411121.

The spelling of 445474164 in words is "four hundred forty-five million, four hundred seventy-four thousand, one hundred sixty-four".