449531707 has 4 divisors (see below), whose sum is σ = 450575136. Its totient is φ = 448488280.

The previous prime is 449531689. The next prime is 449531723. The reversal of 449531707 is 707135944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449531707 - 2²⁷ = 315313979 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 449531707.

It is not an unprimeable number, because it can be changed into a prime (449531777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521068 + ... + 521929.

It is an arithmetic number, because the mean of its divisors is an integer number (112643784).

Almost surely, 2^449531707 is an apocalyptic number.

449531707 is a deficient number, since it is larger than the sum of its proper divisors (1043429).

449531707 is a wasteful number, since it uses less digits than its factorization.

449531707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043428.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 449531707 is about 21202.1627906211. The cubic root of 449531707 is about 766.0435198774.

The spelling of 449531707 in words is "four hundred forty-nine million, five hundred thirty-one thousand, seven hundred seven".