449452980 has 144 divisors (see below), whose sum is σ = 1449040320. Its totient is φ = 112444416.

The previous prime is 449452979. The next prime is 449452981. The reversal of 449452980 is 89254944.

449452980 is a `hidden beast` number, since 4 + 49 + 4 + 529 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (449452979) and next prime (449452981).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449452981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 385879 + ... + 387041.

It is an arithmetic number, because the mean of its divisors is an integer number (10062780).

Almost surely, 2^449452980 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 449452980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724520160).

449452980 is an abundant number, since it is smaller than the sum of its proper divisors (999587340).

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

449452980 is a wasteful number, since it uses less digits than its factorization.

449452980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 449452980 is about 21200.3061298652. The cubic root of 449452980 is about 765.9987979084.

The spelling of 449452980 in words is "four hundred forty-nine million, four hundred fifty-two thousand, nine hundred eighty".