449319940 has 12 divisors (see below), whose sum is σ = 943571916. Its totient is φ = 179727968.

The previous prime is 449319931. The next prime is 449319947. The reversal of 449319940 is 49913944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 175880644 + 273439296 = 13262^2 + 16536^2 .

It is not an unprimeable number, because it can be changed into a prime (449319947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11232979 + ... + 11233018.

It is an arithmetic number, because the mean of its divisors is an integer number (78630993).

Almost surely, 2^449319940 is an apocalyptic number.

It is an amenable number.

449319940 is an abundant number, since it is smaller than the sum of its proper divisors (494251976).

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

449319940 is a wasteful number, since it uses less digits than its factorization.

449319940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22466006 (or 22466004 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 449319940 is about 21197.1682070979. The cubic root of 449319940 is about 765.9232108123.

The spelling of 449319940 in words is "four hundred forty-nine million, three hundred nineteen thousand, nine hundred forty".