449623872 has 196 divisors, whose sum is σ = 1399214880. Its totient is φ = 143016192.

The previous prime is 449623861. The next prime is 449623879. The reversal of 449623872 is 278326944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449623879) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1072879 + ... + 1073297.

Almost surely, 2^449623872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449623872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699607440).

449623872 is an abundant number, since it is smaller than the sum of its proper divisors (949591008).

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

449623872 is an equidigital number, since it uses as much as digits as its factorization.

449623872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 447 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 449623872 is about 21204.3361603234. The cubic root of 449623872 is about 766.0958688555.

The spelling of 449623872 in words is "four hundred forty-nine million, six hundred twenty-three thousand, eight hundred seventy-two".