449428133 has 16 divisors (see below), whose sum is σ = 593288064. Its totient is φ = 329602560.

The previous prime is 449428123. The next prime is 449428139. The reversal of 449428133 is 331824944.

It is not a de Polignac number, because 449428133 - 2¹⁰ = 449427109 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 (449428139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170360 + ... + 172977.

It is an arithmetic number, because the mean of its divisors is an integer number (37080504).

Almost surely, 2^449428133 is an apocalyptic number.

It is an amenable number.

449428133 is a deficient number, since it is larger than the sum of its proper divisors (143859931).

449428133 is a wasteful number, since it uses less digits than its factorization.

449428133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343372.

The product of its digits is 82944, while the sum is 38.

The square root of 449428133 is about 21199.7201160770. The cubic root of 449428133 is about 765.9846821398.

The spelling of 449428133 in words is "four hundred forty-nine million, four hundred twenty-eight thousand, one hundred thirty-three".