814544445 has 64 divisors (see below), whose sum is σ = 1536401664. Its totient is φ = 363294720.

The previous prime is 814544441. The next prime is 814544473. The reversal of 814544445 is 544445418.

It is not a de Polignac number, because 814544445 - 2² = 814544441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814544441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 928347 + ... + 929223.

It is an arithmetic number, because the mean of its divisors is an integer number (24006276).

Almost surely, 2^814544445 is an apocalyptic number.

It is an amenable number.

814544445 is a deficient number, since it is larger than the sum of its proper divisors (721857219).

814544445 is a wasteful number, since it uses less digits than its factorization.

814544445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its digits is 204800, while the sum is 39.

The square root of 814544445 is about 28540.2250341514. The cubic root of 814544445 is about 933.9097914916.

The spelling of 814544445 in words is "eight hundred fourteen million, five hundred forty-four thousand, four hundred forty-five".