445861641 has 16 divisors (see below), whose sum is σ = 602554176. Its totient is φ = 293216256.

The previous prime is 445861621. The next prime is 445861651. The reversal of 445861641 is 146168544.

It is not a de Polignac number, because 445861641 - 2¹¹ = 445859593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445861641.

It is not an unprimeable number, because it can be changed into a prime (445861621) 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, 286321 + ... + 287873.

It is an arithmetic number, because the mean of its divisors is an integer number (37659636).

Almost surely, 2^445861641 is an apocalyptic number.

It is an amenable number.

445861641 is a deficient number, since it is larger than the sum of its proper divisors (156692535).

445861641 is a wasteful number, since it uses less digits than its factorization.

445861641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792.

The product of its digits is 92160, while the sum is 39.

The square root of 445861641 is about 21115.4360835859. The cubic root of 445861641 is about 763.9531102725.

It can be divided in two parts, 44 and 5861641, that added together give a palindrome (5861685).

The spelling of 445861641 in words is "four hundred forty-five million, eight hundred sixty-one thousand, six hundred forty-one".