448449290 has 16 divisors (see below), whose sum is σ = 854691912. Its totient is φ = 168827904.

The previous prime is 448449283. The next prime is 448449347. The reversal of 448449290 is 92944844.

It can be written as a sum of positive squares in 4 ways, for example, as 438944401 + 9504889 = 20951^2 + 3083^2 .

It is a super-2 number, since 2×448449290² = 402213531403008200, which contains 22 as substring.

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, 1318799 + ... + 1319138.

Almost surely, 2^448449290 is an apocalyptic number.

448449290 is a deficient number, since it is larger than the sum of its proper divisors (406242622).

448449290 is a wasteful number, since it uses less digits than its factorization.

448449290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637961.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 448449290 is about 21176.6213074702. The cubic root of 448449290 is about 765.4281795671.

The spelling of 448449290 in words is "four hundred forty-eight million, four hundred forty-nine thousand, two hundred ninety".