449503840 has 48 divisors (see below), whose sum is σ = 1076937120. Its totient is φ = 177264640.

The previous prime is 449503819. The next prime is 449503841. The reversal of 449503840 is 48305944.

It is a self number, because there is not a number n which added to its sum of digits gives 449503840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449503841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8425 + ... + 31144.

It is an arithmetic number, because the mean of its divisors is an integer number (22436190).

Almost surely, 2^449503840 is an apocalyptic number.

449503840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449503840 is an abundant number, since it is smaller than the sum of its proper divisors (627433280).

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

449503840 is a wasteful number, since it uses less digits than its factorization.

449503840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39655 (or 39647 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 449503840 is about 21201.5056069139. The cubic root of 449503840 is about 766.0276902369.

The spelling of 449503840 in words is "four hundred forty-nine million, five hundred three thousand, eight hundred forty".