445725645 has 16 divisors (see below), whose sum is σ = 713430720. Its totient is φ = 237630464.

The previous prime is 445725641. The next prime is 445725647. The reversal of 445725645 is 546527544.

It is a cyclic number.

It is not a de Polignac number, because 445725645 - 2² = 445725641 is a prime.

It is a super-3 number, since 3×445725645³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 445725597 and 445725606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445725641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60397 + ... + 67373.

It is an arithmetic number, because the mean of its divisors is an integer number (44589420).

Almost surely, 2^445725645 is an apocalyptic number.

It is an amenable number.

445725645 is a deficient number, since it is larger than the sum of its proper divisors (267705075).

445725645 is a wasteful number, since it uses less digits than its factorization.

445725645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11244.

The product of its digits is 672000, while the sum is 42.

The square root of 445725645 is about 21112.2155398243. The cubic root of 445725645 is about 763.8754291246.

The spelling of 445725645 in words is "four hundred forty-five million, seven hundred twenty-five thousand, six hundred forty-five".