449879453 has 4 divisors (see below), whose sum is σ = 457254588. Its totient is φ = 442504320.

The previous prime is 449879413. The next prime is 449879461. The reversal of 449879453 is 354978944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130256569 + 319622884 = 11413^2 + 17878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449879453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 449879395 and 449879404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449879413) 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, 3687476 + ... + 3687597.

It is an arithmetic number, because the mean of its divisors is an integer number (114313647).

Almost surely, 2^449879453 is an apocalyptic number.

It is an amenable number.

449879453 is a deficient number, since it is larger than the sum of its proper divisors (7375135).

449879453 is an equidigital number, since it uses as much as digits as its factorization.

449879453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375134.

The product of its digits is 4354560, while the sum is 53.

The square root of 449879453 is about 21210.3619252478. The cubic root of 449879453 is about 766.2409993913.

The spelling of 449879453 in words is "four hundred forty-nine million, eight hundred seventy-nine thousand, four hundred fifty-three".