449617490 has 32 divisors (see below), whose sum is σ = 954768384. Its totient is φ = 149181120.

The previous prime is 449617489. The next prime is 449617499. The reversal of 449617490 is 94716944.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (449617499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101429 + ... + 105768.

It is an arithmetic number, because the mean of its divisors is an integer number (29836512).

Almost surely, 2^449617490 is an apocalyptic number.

449617490 is an abundant number, since it is smaller than the sum of its proper divisors (505150894).

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

449617490 is a wasteful number, since it uses less digits than its factorization.

449617490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207242.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 449617490 is about 21204.1856717017. The cubic root of 449617490 is about 766.0922441614.

The spelling of 449617490 in words is "four hundred forty-nine million, six hundred seventeen thousand, four hundred ninety".