445566457 has 12 divisors (see below), whose sum is σ = 519073920. Its totient is φ = 381352776.

The previous prime is 445566427. The next prime is 445566463. The reversal of 445566457 is 754665544.

It is not a de Polignac number, because 445566457 - 2¹⁵ = 445533689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445566427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28908 + ... + 41554.

It is an arithmetic number, because the mean of its divisors is an integer number (43256160).

Almost surely, 2^445566457 is an apocalyptic number.

It is an amenable number.

445566457 is a deficient number, since it is larger than the sum of its proper divisors (73507463).

445566457 is a wasteful number, since it uses less digits than its factorization.

445566457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380 (or 13373 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 46.

The square root of 445566457 is about 21108.4451582773. The cubic root of 445566457 is about 763.7844805914.

The spelling of 445566457 in words is "four hundred forty-five million, five hundred sixty-six thousand, four hundred fifty-seven".