445725616 has 40 divisors (see below), whose sum is σ = 1009927424. Its totient is φ = 186580800.

The previous prime is 445725613. The next prime is 445725629. The reversal of 445725616 is 616527544.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (445725611) 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, 41460 + ... + 51091.

Almost surely, 2^445725616 is an apocalyptic number.

It is an amenable number.

445725616 is an abundant number, since it is smaller than the sum of its proper divisors (564201808).

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

445725616 is a wasteful number, since it uses less digits than its factorization.

445725616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92609 (or 92603 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 445725616 is about 21112.2148530181. The cubic root of 445725616 is about 763.8754125580.

The spelling of 445725616 in words is "four hundred forty-five million, seven hundred twenty-five thousand, six hundred sixteen".