449520499 has 4 divisors (see below), whose sum is σ = 451269864. Its totient is φ = 447771136.

The previous prime is 449520481. The next prime is 449520523. The reversal of 449520499 is 994025944.

It is a happy number.

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 449520499 - 2¹⁹ = 448996211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449520419) 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, 874297 + ... + 874810.

It is an arithmetic number, because the mean of its divisors is an integer number (112817466).

Almost surely, 2^449520499 is an apocalyptic number.

449520499 is a deficient number, since it is larger than the sum of its proper divisors (1749365).

449520499 is a wasteful number, since it uses less digits than its factorization.

449520499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749364.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 449520499 is about 21201.8984763157. The cubic root of 449520499 is about 766.0371533357.

Subtracting 449520499 from its reverse (994025944), we obtain a palindrome (544505445).

The spelling of 449520499 in words is "four hundred forty-nine million, five hundred twenty thousand, four hundred ninety-nine".