449145786 has 32 divisors (see below), whose sum is σ = 915350400. Its totient is φ = 146893824.

The previous prime is 449145773. The next prime is 449145791. The reversal of 449145786 is 687541944.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84586 + ... + 89738.

It is an arithmetic number, because the mean of its divisors is an integer number (28604700).

Almost surely, 2^449145786 is an apocalyptic number.

449145786 is an abundant number, since it is smaller than the sum of its proper divisors (466204614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449145786 is a wasteful number, since it uses less digits than its factorization.

449145786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430.

The product of its digits is 967680, while the sum is 48.

The square root of 449145786 is about 21193.0598545845. The cubic root of 449145786 is about 765.8242421144.

The spelling of 449145786 in words is "four hundred forty-nine million, one hundred forty-five thousand, seven hundred eighty-six".