800409445 has 16 divisors (see below), whose sum is σ = 1067582592. Its totient is φ = 571130560.

The previous prime is 800409443. The next prime is 800409529. The reversal of 800409445 is 544904008.

It is not a de Polignac number, because 800409445 - 2¹ = 800409443 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 800409445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800409443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134377 + ... + 140206.

It is an arithmetic number, because the mean of its divisors is an integer number (66723912).

Almost surely, 2^800409445 is an apocalyptic number.

It is an amenable number.

800409445 is a deficient number, since it is larger than the sum of its proper divisors (267173147).

800409445 is a wasteful number, since it uses less digits than its factorization.

800409445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274652.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 800409445 is about 28291.5083549817. The cubic root of 800409445 is about 928.4761126565.

The spelling of 800409445 in words is "eight hundred million, four hundred nine thousand, four hundred forty-five".