449728885 has 8 divisors (see below), whose sum is σ = 540480600. Its totient is φ = 359245824.

The previous prime is 449728871. The next prime is 449728889. The reversal of 449728885 is 588827944.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10491121 + 439237764 = 3239^2 + 20958^2 .

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 449728885 - 2⁷ = 449728757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449728889) 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, 63460 + ... + 70189.

It is an arithmetic number, because the mean of its divisors is an integer number (67560075).

Almost surely, 2^449728885 is an apocalyptic number.

It is an amenable number.

449728885 is a deficient number, since it is larger than the sum of its proper divisors (90751715).

449728885 is a wasteful number, since it uses less digits than its factorization.

449728885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134327.

The product of its digits is 5160960, while the sum is 55.

The square root of 449728885 is about 21206.8122309790. The cubic root of 449728885 is about 766.1555066758.

The spelling of 449728885 in words is "four hundred forty-nine million, seven hundred twenty-eight thousand, eight hundred eighty-five".