449387980 has 12 divisors (see below), whose sum is σ = 943714800. Its totient is φ = 179755184.

The previous prime is 449387963. The next prime is 449387987. The reversal of 449387980 is 89783944.

It is not an unprimeable number, because it can be changed into a prime (449387987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11234680 + ... + 11234719.

It is an arithmetic number, because the mean of its divisors is an integer number (78642900).

Almost surely, 2^449387980 is an apocalyptic number.

It is an amenable number.

449387980 is an abundant number, since it is smaller than the sum of its proper divisors (494326820).

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

449387980 is a wasteful number, since it uses less digits than its factorization.

449387980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22469408 (or 22469406 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 449387980 is about 21198.7730777043. The cubic root of 449387980 is about 765.9618698170.

The spelling of 449387980 in words is "four hundred forty-nine million, three hundred eighty-seven thousand, nine hundred eighty".