449006349520 has 80 divisors (see below), whose sum is σ = 1047801650688. Its totient is φ = 178938705920.

The previous prime is 449006349499. The next prime is 449006349529. The reversal of 449006349520 is 25943600944.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449006349529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84763512 + ... + 84768808.

Almost surely, 2^449006349520 is an apocalyptic number.

449006349520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449006349520 is an abundant number, since it is smaller than the sum of its proper divisors (598795301168).

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

449006349520 is a wasteful number, since it uses less digits than its factorization.

449006349520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9028 (or 9022 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 449006349520 in words is "four hundred forty-nine billion, six million, three hundred forty-nine thousand, five hundred twenty".