449992279828 has 72 divisors (see below), whose sum is σ = 989085556032. Its totient is φ = 175361801472.

The previous prime is 449992279747. The next prime is 449992279831. The reversal of 449992279828 is 828972299944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392625 + ... + 1026712.

Almost surely, 2^449992279828 is an apocalyptic number.

It is an amenable number.

449992279828 is an abundant number, since it is smaller than the sum of its proper divisors (539093276204).

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

449992279828 is a wasteful number, since it uses less digits than its factorization.

449992279828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419441 (or 1419426 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 73.

The spelling of 449992279828 in words is "four hundred forty-nine billion, nine hundred ninety-two million, two hundred seventy-nine thousand, eight hundred twenty-eight".