449925729 has 16 divisors (see below), whose sum is σ = 654861504. Its totient is φ = 272505600.

The previous prime is 449925713. The next prime is 449925737. The reversal of 449925729 is 927529944.

It is not a de Polignac number, because 449925729 - 2⁴ = 449925713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449925779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62349 + ... + 69189.

It is an arithmetic number, because the mean of its divisors is an integer number (40928844).

Almost surely, 2^449925729 is an apocalyptic number.

It is an amenable number.

449925729 is a deficient number, since it is larger than the sum of its proper divisors (204935775).

449925729 is a wasteful number, since it uses less digits than its factorization.

449925729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8848.

The product of its digits is 1632960, while the sum is 51.

The square root of 449925729 is about 21211.4527791003. The cubic root of 449925729 is about 766.2672711348.

It can be divided in two parts, 44992 and 5729, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 449925729 in words is "four hundred forty-nine million, nine hundred twenty-five thousand, seven hundred twenty-nine".