449223629 has 4 divisors (see below), whose sum is σ = 452085084. Its totient is φ = 446362176.

The previous prime is 449223617. The next prime is 449223637. The reversal of 449223629 is 926322944.

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 112317604 + 336906025 = 10598^2 + 18355^2 .

It is a cyclic number.

It is not a de Polignac number, because 449223629 - 2²⁰ = 448175053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449223029) 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 3 ways as a sum of consecutive naturals, for example, 1430492 + ... + 1430805.

It is an arithmetic number, because the mean of its divisors is an integer number (113021271).

Almost surely, 2^449223629 is an apocalyptic number.

It is an amenable number.

449223629 is a deficient number, since it is larger than the sum of its proper divisors (2861455).

449223629 is a wasteful number, since it uses less digits than its factorization.

449223629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861454.

The product of its digits is 186624, while the sum is 41.

The square root of 449223629 is about 21194.8962960426. The cubic root of 449223629 is about 765.8684821026.

The spelling of 449223629 in words is "four hundred forty-nine million, two hundred twenty-three thousand, six hundred twenty-nine".