450204012 has 72 divisors (see below), whose sum is σ = 1230356400. Its totient is φ = 138319488.

The previous prime is 450204011. The next prime is 450204019. The reversal of 450204012 is 210402054.

450204012 is a `hidden beast` number, since 450 + 204 + 0 + 12 = 666.

It is a super-2 number, since 2×450204012² = 405367304841792288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (450204011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16414 + ... + 34202.

Almost surely, 2^450204012 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 450204012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615178200).

450204012 is an abundant number, since it is smaller than the sum of its proper divisors (780152388).

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

450204012 is a wasteful number, since it uses less digits than its factorization.

450204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17855 (or 17850 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 450204012 is about 21218.0114996670. The cubic root of 450204012 is about 766.4252195790.

Adding to 450204012 its reverse (210402054), we get a palindrome (660606066).

The spelling of 450204012 in words is "four hundred fifty million, two hundred four thousand, twelve".