449198899 has 4 divisors (see below), whose sum is σ = 450213336. Its totient is φ = 448184464.

The previous prime is 449198891. The next prime is 449198921. The reversal of 449198899 is 998891944.

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 449198899 - 2³ = 449198891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449198891) 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, 506554 + ... + 507439.

It is an arithmetic number, because the mean of its divisors is an integer number (112553334).

Almost surely, 2^449198899 is an apocalyptic number.

449198899 is a deficient number, since it is larger than the sum of its proper divisors (1014437).

449198899 is a wasteful number, since it uses less digits than its factorization.

449198899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014436.

The product of its digits is 6718464, while the sum is 61.

The square root of 449198899 is about 21194.3128928493. The cubic root of 449198899 is about 765.8544280222.

The spelling of 449198899 in words is "four hundred forty-nine million, one hundred ninety-eight thousand, eight hundred ninety-nine".