450530000 has 50 divisors (see below), whose sum is σ = 1090802394. Its totient is φ = 180208000.

The previous prime is 450529999. The next prime is 450530011. The reversal of 450530000 is 35054.

It can be written as a sum of positive squares in 5 ways, for example, as 135396496 + 315133504 = 11636^2 + 17752^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12527 + ... + 32526.

Almost surely, 2^450530000 is an apocalyptic number.

450530000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450530000 is an abundant number, since it is smaller than the sum of its proper divisors (640272394).

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

450530000 is an equidigital number, since it uses as much as digits as its factorization.

450530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45081 (or 45060 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 450530000 is about 21225.6919792972. The cubic root of 450530000 is about 766.6101617671.

Adding to 450530000 its reverse (35054), we get a palindrome (450565054).

The spelling of 450530000 in words is "four hundred fifty million, five hundred thirty thousand".