450028980 has 96 divisors (see below), whose sum is σ = 1403297280. Its totient is φ = 119733120.

The previous prime is 450028963. The next prime is 450028991. The reversal of 450028980 is 89820054.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 364965 + ... + 366195.

It is an arithmetic number, because the mean of its divisors is an integer number (14617680).

Almost surely, 2^450028980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450028980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701648640).

450028980 is an abundant number, since it is smaller than the sum of its proper divisors (953268300).

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

450028980 is a wasteful number, since it uses less digits than its factorization.

450028980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 450028980 is about 21213.8864897501. The cubic root of 450028980 is about 766.3258821496.

The spelling of 450028980 in words is "four hundred fifty million, twenty-eight thousand, nine hundred eighty".