449490417 has 4 divisors (see below), whose sum is σ = 599320560. Its totient is φ = 299660276.

The previous prime is 449490409. The next prime is 449490427. The reversal of 449490417 is 714094944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 449490417 - 2³ = 449490409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449490427) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 74915067 + ... + 74915072.

It is an arithmetic number, because the mean of its divisors is an integer number (149830140).

Almost surely, 2^449490417 is an apocalyptic number.

It is an amenable number.

449490417 is a deficient number, since it is larger than the sum of its proper divisors (149830143).

449490417 is a wasteful number, since it uses less digits than its factorization.

449490417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149830142.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 449490417 is about 21201.1890468436. The cubic root of 449490417 is about 766.0200651689.

The spelling of 449490417 in words is "four hundred forty-nine million, four hundred ninety thousand, four hundred seventeen".