445774405 has 4 divisors (see below), whose sum is σ = 534929292. Its totient is φ = 356619520.

The previous prime is 445774403. The next prime is 445774453. The reversal of 445774405 is 504477544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 328116996 + 117657409 = 18114^2 + 10847^2 .

It is not a de Polignac number, because 445774405 - 2¹ = 445774403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445774403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44577436 + ... + 44577445.

It is an arithmetic number, because the mean of its divisors is an integer number (133732323).

Almost surely, 2^445774405 is an apocalyptic number.

It is an amenable number.

445774405 is a deficient number, since it is larger than the sum of its proper divisors (89154887).

445774405 is an equidigital number, since it uses as much as digits as its factorization.

445774405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89154886.

The product of its (nonzero) digits is 313600, while the sum is 40.

The square root of 445774405 is about 21113.3702899371. The cubic root of 445774405 is about 763.9032827368.

The spelling of 445774405 in words is "four hundred forty-five million, seven hundred seventy-four thousand, four hundred five".