445577645 has 16 divisors (see below), whose sum is σ = 567829440. Its totient is φ = 334704384.

The previous prime is 445577621. The next prime is 445577659. The reversal of 445577645 is 546775544.

It is a cyclic number.

It is not a de Polignac number, because 445577645 - 2⁶ = 445577581 is a prime.

It is a super-3 number, since 3×445577645³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445577645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10019 + ... + 31488.

It is an arithmetic number, because the mean of its divisors is an integer number (35489340).

Almost surely, 2^445577645 is an apocalyptic number.

It is an amenable number.

445577645 is a deficient number, since it is larger than the sum of its proper divisors (122251795).

445577645 is a wasteful number, since it uses less digits than its factorization.

445577645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41644.

The product of its digits is 2352000, while the sum is 47.

The square root of 445577645 is about 21108.7101690274. The cubic root of 445577645 is about 763.7908733147.

The spelling of 445577645 in words is "four hundred forty-five million, five hundred seventy-seven thousand, six hundred forty-five".