449045723 has 16 divisors (see below), whose sum is σ = 519346944. Its totient is φ = 380302560.

The previous prime is 449045713. The next prime is 449045731. The reversal of 449045723 is 327540944.

It is a cyclic number.

It is not a de Polignac number, because 449045723 - 2²⁶ = 381936859 is a prime.

It is a super-2 number, since 2×449045723² = 403284122689185458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449045713) 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 15 ways as a sum of consecutive naturals, for example, 494636 + ... + 495542.

It is an arithmetic number, because the mean of its divisors is an integer number (32459184).

Almost surely, 2^449045723 is an apocalyptic number.

449045723 is a deficient number, since it is larger than the sum of its proper divisors (70301221).

449045723 is a wasteful number, since it uses less digits than its factorization.

449045723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 449045723 is about 21190.6989738423. The cubic root of 449045723 is about 765.7673664741.

The spelling of 449045723 in words is "four hundred forty-nine million, forty-five thousand, seven hundred twenty-three".