450021300 has 36 divisors (see below), whose sum is σ = 1302062496. Its totient is φ = 120005600.

The previous prime is 450021293. The next prime is 450021301. The reversal of 450021300 is 3120054.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 450021300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450021301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749736 + ... + 750335.

Almost surely, 2^450021300 is an apocalyptic number.

It is an amenable number.

450021300 is an abundant number, since it is smaller than the sum of its proper divisors (852041196).

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

450021300 is a wasteful number, since it uses less digits than its factorization.

450021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500088 (or 1500081 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 450021300 is about 21213.7054754703. The cubic root of 450021300 is about 766.3215228627.

Adding to 450021300 its reverse (3120054), we get a palindrome (453141354).

The spelling of 450021300 in words is "four hundred fifty million, twenty-one thousand, three hundred".