449193660 has 24 divisors (see below), whose sum is σ = 1257742416. Its totient is φ = 119784960.

The previous prime is 449193659. The next prime is 449193677. The reversal of 449193660 is 66391944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743221 + ... + 3743340.

It is an arithmetic number, because the mean of its divisors is an integer number (52405934).

Almost surely, 2^449193660 is an apocalyptic number.

It is an amenable number.

449193660 is an abundant number, since it is smaller than the sum of its proper divisors (808548756).

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

449193660 is a wasteful number, since it uses less digits than its factorization.

449193660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486573 (or 7486571 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 449193660 is about 21194.1892980128. The cubic root of 449193660 is about 765.8514506277.

The spelling of 449193660 in words is "four hundred forty-nine million, one hundred ninety-three thousand, six hundred sixty".