449823240 has 64 divisors (see below), whose sum is σ = 1499414400. Its totient is φ = 119952576.

The previous prime is 449823181. The next prime is 449823251. The reversal of 449823240 is 42328944.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 449823195 and 449823204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207172 + ... + 209331.

It is an arithmetic number, because the mean of its divisors is an integer number (23428350).

Almost surely, 2^449823240 is an apocalyptic number.

449823240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449823240 is an abundant number, since it is smaller than the sum of its proper divisors (1049591160).

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

449823240 is a wasteful number, since it uses less digits than its factorization.

449823240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416523 (or 416513 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 449823240 is about 21209.0367532333. The cubic root of 449823240 is about 766.2090838051.

Subtracting from 449823240 its product of nonzero digits (55296), we obtain a palindrome (449767944).

The spelling of 449823240 in words is "four hundred forty-nine million, eight hundred twenty-three thousand, two hundred forty".