449081619540 has 48 divisors (see below), whose sum is σ = 1257519782400. Its totient is φ = 119746408320.

The previous prime is 449081619533. The next prime is 449081619563. The reversal of 449081619540 is 45916180944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584445 + ... + 1113435.

It is an arithmetic number, because the mean of its divisors is an integer number (26198328800).

Almost surely, 2^449081619540 is an apocalyptic number.

It is an amenable number.

449081619540 is an abundant number, since it is smaller than the sum of its proper divisors (808438162860).

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

449081619540 is a wasteful number, since it uses less digits than its factorization.

449081619540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543152 (or 543150 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 449081619540 in words is "four hundred forty-nine billion, eighty-one million, six hundred nineteen thousand, five hundred forty".