445616461 has 8 divisors (see below), whose sum is σ = 473858424. Its totient is φ = 417600000.

The previous prime is 445616453. The next prime is 445616477. The reversal of 445616461 is 164616544.

It can be written as a sum of positive squares in 4 ways, for example, as 8555625 + 437060836 = 2925^2 + 20906^2 .

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 445616461 - 2³ = 445616453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445616461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445616401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52290 + ... + 60211.

It is an arithmetic number, because the mean of its divisors is an integer number (59232303).

Almost surely, 2^445616461 is an apocalyptic number.

It is an amenable number.

445616461 is a deficient number, since it is larger than the sum of its proper divisors (28241963).

445616461 is a wasteful number, since it uses less digits than its factorization.

445616461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112751.

The product of its digits is 69120, while the sum is 37.

The square root of 445616461 is about 21109.6295798860. The cubic root of 445616461 is about 763.8130516010.

The spelling of 445616461 in words is "four hundred forty-five million, six hundred sixteen thousand, four hundred sixty-one".