449609187 has 4 divisors (see below), whose sum is σ = 599478920. Its totient is φ = 299739456.

The previous prime is 449609177. The next prime is 449609227. The reversal of 449609187 is 781906944.

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

It is not a de Polignac number, because 449609187 - 2¹¹ = 449607139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449609107) 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, 74934862 + ... + 74934867.

It is an arithmetic number, because the mean of its divisors is an integer number (149869730).

Almost surely, 2^449609187 is an apocalyptic number.

449609187 is a deficient number, since it is larger than the sum of its proper divisors (149869733).

449609187 is a wasteful number, since it uses less digits than its factorization.

449609187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149869732.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 449609187 is about 21203.9898839817. The cubic root of 449609187 is about 766.0875283729.

The spelling of 449609187 in words is "four hundred forty-nine million, six hundred nine thousand, one hundred eighty-seven".