449453631 has 8 divisors (see below), whose sum is σ = 653750784. Its totient is φ = 272396120.

The previous prime is 449453579. The next prime is 449453647. The reversal of 449453631 is 136354944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449453631 - 2⁹ = 449453119 is a prime.

It is a super-2 number, since 2×449453631² = 404017132838168322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 449453631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449453651) 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 7 ways as a sum of consecutive naturals, for example, 6809871 + ... + 6809936.

It is an arithmetic number, because the mean of its divisors is an integer number (81718848).

Almost surely, 2^449453631 is an apocalyptic number.

449453631 is a deficient number, since it is larger than the sum of its proper divisors (204297153).

449453631 is a wasteful number, since it uses less digits than its factorization.

449453631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13619821.

The product of its digits is 155520, while the sum is 39.

The square root of 449453631 is about 21200.3214834115. The cubic root of 449453631 is about 765.9991677395. Note that the first 3 decimals are identical.

The spelling of 449453631 in words is "four hundred forty-nine million, four hundred fifty-three thousand, six hundred thirty-one".