449729 has 8 divisors (see below), whose sum is σ = 526848. Its totient is φ = 375840.

The previous prime is 449699. The next prime is 449741. The reversal of 449729 is 927944.

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 449729 - 2⁸ = 449473 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (449759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497 + ... + 1070.

It is an arithmetic number, because the mean of its divisors is an integer number (65856).

2⁴⁴⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

449729 is a deficient number, since it is larger than the sum of its proper divisors (77119).

449729 is a wasteful number, since it uses less digits than its factorization.

449729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615.

The product of its digits is 18144, while the sum is 35.

The square root of 449729 is about 670.6183713559. The cubic root of 449729 is about 76.6155571980.

It can be divided in two parts, 4 and 49729, that multiplied together give a square (198916 = 446²).

The spelling of 449729 in words is "four hundred forty-nine thousand, seven hundred twenty-nine".