445938385 has 8 divisors (see below), whose sum is σ = 542457000. Its totient is φ = 351863424.

The previous prime is 445938377. The next prime is 445938401. The reversal of 445938385 is 583839544.

It can be written as a sum of positive squares in 4 ways, for example, as 221841 + 445716544 = 471^2 + 21112^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445938385 - 2³ = 445938377 is a prime.

It is a super-2 number, since 2×445938385² = 397722086432816450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610510 + ... + 611239.

It is an arithmetic number, because the mean of its divisors is an integer number (67807125).

Almost surely, 2^445938385 is an apocalyptic number.

It is an amenable number.

445938385 is a deficient number, since it is larger than the sum of its proper divisors (96518615).

445938385 is a wasteful number, since it uses less digits than its factorization.

445938385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221827.

The product of its digits is 2073600, while the sum is 49.

The square root of 445938385 is about 21117.2532541522. The cubic root of 445938385 is about 763.9969396047.

The spelling of 445938385 in words is "four hundred forty-five million, nine hundred thirty-eight thousand, three hundred eighty-five".