445745772 has 18 divisors (see below), whose sum is σ = 1126746348. Its totient is φ = 148581912.

The previous prime is 445745711. The next prime is 445745777. The reversal of 445745772 is 277547544.

445745772 is a `hidden beast` number, since 4 + 4 + 5 + 74 + 577 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (445745777) 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 5 ways as a sum of consecutive naturals, for example, 6190878 + ... + 6190949.

Almost surely, 2^445745772 is an apocalyptic number.

It is an amenable number.

445745772 is an abundant number, since it is smaller than the sum of its proper divisors (681000576).

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

445745772 is a wasteful number, since it uses less digits than its factorization.

445745772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381837 (or 12381832 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 45.

The square root of 445745772 is about 21112.6922016118. The cubic root of 445745772 is about 763.8869266975.

The spelling of 445745772 in words is "four hundred forty-five million, seven hundred forty-five thousand, seven hundred seventy-two".