449702990 has 16 divisors (see below), whose sum is σ = 883053360. Its totient is φ = 163528320.

The previous prime is 449702983. The next prime is 449702999. The reversal of 449702990 is 99207944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449702999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043995 + ... + 2044214.

It is an arithmetic number, because the mean of its divisors is an integer number (55190835).

Almost surely, 2^449702990 is an apocalyptic number.

449702990 is a deficient number, since it is larger than the sum of its proper divisors (433350370).

449702990 is a wasteful number, since it uses less digits than its factorization.

449702990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088227.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 449702990 is about 21206.2016872423. The cubic root of 449702990 is about 766.1408015366.

The spelling of 449702990 in words is "four hundred forty-nine million, seven hundred two thousand, nine hundred ninety".