449405901 has 84 divisors (see below), whose sum is σ = 819382752. Its totient is φ = 245188944.

The previous prime is 449405899. The next prime is 449405909. The reversal of 449405901 is 109504944.

It is a happy number.

It is not a de Polignac number, because 449405901 - 2¹ = 449405899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449405909) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 821310 + ... + 821856.

Almost surely, 2^449405901 is an apocalyptic number.

It is an amenable number.

449405901 is a deficient number, since it is larger than the sum of its proper divisors (369976851).

449405901 is an equidigital number, since it uses as much as digits as its factorization.

449405901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 449405901 is about 21199.1957630472. The cubic root of 449405901 is about 765.9720515314.

The spelling of 449405901 in words is "four hundred forty-nine million, four hundred five thousand, nine hundred one".