449039624 has 64 divisors (see below), whose sum is σ = 938096640. Its totient is φ = 199805760.

The previous prime is 449039599. The next prime is 449039627. The reversal of 449039624 is 426930944.

It is a super-2 number, since 2×449039624² = 403273167844122752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449039627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969617 + ... + 970079.

It is an arithmetic number, because the mean of its divisors is an integer number (14657760).

Almost surely, 2^449039624 is an apocalyptic number.

449039624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449039624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469048320).

449039624 is an abundant number, since it is smaller than the sum of its proper divisors (489057016).

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

449039624 is a wasteful number, since it uses less digits than its factorization.

449039624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 449039624 is about 21190.5550658778. Note that the first 3 decimals coincide. The cubic root of 449039624 is about 765.7638995396.

The spelling of 449039624 in words is "four hundred forty-nine million, thirty-nine thousand, six hundred twenty-four".