449789907 has 32 divisors (see below), whose sum is σ = 723064320. Its totient is φ = 242956800.

The previous prime is 449789903. The next prime is 449789929. The reversal of 449789907 is 709987944.

It is not a de Polignac number, because 449789907 - 2² = 449789903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (449789903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235657 + ... + 237557.

It is an arithmetic number, because the mean of its divisors is an integer number (22595760).

Almost surely, 2^449789907 is an apocalyptic number.

449789907 is a deficient number, since it is larger than the sum of its proper divisors (273274413).

449789907 is a wasteful number, since it uses less digits than its factorization.

449789907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 449789907 is about 21208.2509179800. The cubic root of 449789907 is about 766.1901573498.

The spelling of 449789907 in words is "four hundred forty-nine million, seven hundred eighty-nine thousand, nine hundred seven".