449287850 has 24 divisors (see below), whose sum is σ = 911647008. Its totient is φ = 163377200.

The previous prime is 449287847. The next prime is 449287859. The reversal of 449287850 is 58782944.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 449287795 and 449287804.

It is not an unprimeable number, because it can be changed into a prime (449287859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407894 + ... + 408993.

It is an arithmetic number, because the mean of its divisors is an integer number (37985292).

Almost surely, 2^449287850 is an apocalyptic number.

449287850 is an abundant number, since it is smaller than the sum of its proper divisors (462359158).

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

449287850 is a wasteful number, since it uses less digits than its factorization.

449287850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816910 (or 816905 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 449287850 is about 21196.4112528513. The cubic root of 449287850 is about 765.9049765440.

The spelling of 449287850 in words is "four hundred forty-nine million, two hundred eighty-seven thousand, eight hundred fifty".