450447428820 has 96 divisors (see below), whose sum is σ = 1302140722176. Its totient is φ = 116226432000.

The previous prime is 450447428803. The next prime is 450447428861. The reversal of 450447428820 is 28824744054.

It is a super-2 number, since 2×450447428820² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 450447428820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15306120 + ... + 15335520.

It is an arithmetic number, because the mean of its divisors is an integer number (13563965856).

Almost surely, 2^450447428820 is an apocalyptic number.

It is an amenable number.

450447428820 is an abundant number, since it is smaller than the sum of its proper divisors (851693293356).

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

450447428820 is a wasteful number, since it uses less digits than its factorization.

450447428820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37681 (or 37679 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 48.

The spelling of 450447428820 in words is "four hundred fifty billion, four hundred forty-seven million, four hundred twenty-eight thousand, eight hundred twenty".