449140734 has 128 divisors (see below), whose sum is σ = 1253376000. Its totient is φ = 116243424.

The previous prime is 449140729. The next prime is 449140751. The reversal of 449140734 is 437041944.

449140734 is a `hidden beast` number, since 449 + 140 + 73 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163827 + ... + 166545.

It is an arithmetic number, because the mean of its divisors is an integer number (9792000).

Almost surely, 2^449140734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449140734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626688000).

449140734 is an abundant number, since it is smaller than the sum of its proper divisors (804235266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449140734 is a wasteful number, since it uses less digits than its factorization.

449140734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 449140734 is about 21192.9406642872. The cubic root of 449140734 is about 765.8213707687.

The spelling of 449140734 in words is "four hundred forty-nine million, one hundred forty thousand, seven hundred thirty-four".