445477441 has 4 divisors (see below), whose sum is σ = 449564500. Its totient is φ = 441390384.

The previous prime is 445477399. The next prime is 445477453. The reversal of 445477441 is 144774544.

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 114383025 + 331094416 = 10695^2 + 18196^2 .

It is a cyclic number.

It is not a de Polignac number, because 445477441 - 2¹³ = 445469249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445477394 and 445477403.

It is not an unprimeable number, because it can be changed into a prime (445477141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043366 + ... + 2043583.

It is an arithmetic number, because the mean of its divisors is an integer number (112391125).

Almost surely, 2^445477441 is an apocalyptic number.

It is an amenable number.

445477441 is a deficient number, since it is larger than the sum of its proper divisors (4087059).

445477441 is a wasteful number, since it uses less digits than its factorization.

445477441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087058.

The product of its digits is 250880, while the sum is 40.

The square root of 445477441 is about 21106.3365130001. The cubic root of 445477441 is about 763.7336138303.

The spelling of 445477441 in words is "four hundred forty-five million, four hundred seventy-seven thousand, four hundred forty-one".