445041215 has 24 divisors (see below), whose sum is σ = 575219760. Its totient is φ = 330421248.

The previous prime is 445041211. The next prime is 445041229. The reversal of 445041215 is 512140544.

It is a Cunningham number, because it is equal to 21096²-1.

It is not a de Polignac number, because 445041215 - 2² = 445041211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445041211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103376 + ... + 107594.

It is an arithmetic number, because the mean of its divisors is an integer number (23967490).

Almost surely, 2^445041215 is an apocalyptic number.

445041215 is a deficient number, since it is larger than the sum of its proper divisors (130178545).

445041215 is a wasteful number, since it uses less digits than its factorization.

445041215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 445041215 is about 21095.9999762988. Note that the first 4 decimals coincide. The cubic root of 445041215 is about 763.4842414827.

Adding to 445041215 its reverse (512140544), we get a palindrome (957181759).

The spelling of 445041215 in words is "four hundred forty-five million, forty-one thousand, two hundred fifteen".