449916990 has 16 divisors (see below), whose sum is σ = 1079800848. Its totient is φ = 119977856.

The previous prime is 449916977. The next prime is 449917073. The reversal of 449916990 is 99619944.

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, 7498587 + ... + 7498646.

It is an arithmetic number, because the mean of its divisors is an integer number (67487553).

Almost surely, 2^449916990 is an apocalyptic number.

449916990 is an abundant number, since it is smaller than the sum of its proper divisors (629883858).

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

449916990 is a wasteful number, since it uses less digits than its factorization.

449916990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14997243.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 449916990 is about 21211.2467808943. The cubic root of 449916990 is about 766.2623099804.

The spelling of 449916990 in words is "four hundred forty-nine million, nine hundred sixteen thousand, nine hundred ninety".