449438128 has 10 divisors (see below), whose sum is σ = 870786404. Its totient is φ = 224719056.

The previous prime is 449438113. The next prime is 449438137. The reversal of 449438128 is 821834944.

It is a super-3 number, since 3×449438128³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14044926 + ... + 14044957.

Almost surely, 2^449438128 is an apocalyptic number.

It is an amenable number.

449438128 is a deficient number, since it is larger than the sum of its proper divisors (421348276).

449438128 is a wasteful number, since it uses less digits than its factorization.

449438128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28089891 (or 28089885 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 449438128 is about 21199.9558490106. The cubic root of 449438128 is about 765.9903604374.

The spelling of 449438128 in words is "four hundred forty-nine million, four hundred thirty-eight thousand, one hundred twenty-eight".