449401915 has 4 divisors (see below), whose sum is σ = 539282304. Its totient is φ = 359521528.

The previous prime is 449401913. The next prime is 449401949. The reversal of 449401915 is 519104944.

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 449401915 - 2¹ = 449401913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449401913) 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, 44940187 + ... + 44940196.

It is an arithmetic number, because the mean of its divisors is an integer number (134820576).

Almost surely, 2^449401915 is an apocalyptic number.

449401915 is a deficient number, since it is larger than the sum of its proper divisors (89880389).

449401915 is an equidigital number, since it uses as much as digits as its factorization.

449401915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89880388.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 449401915 is about 21199.1017498384. The cubic root of 449401915 is about 765.9697869315.

The spelling of 449401915 in words is "four hundred forty-nine million, four hundred one thousand, nine hundred fifteen".