450621312 has 64 divisors (see below), whose sum is σ = 1267390800. Its totient is φ = 141369344.

The previous prime is 450621299. The next prime is 450621337. The reversal of 450621312 is 213126054.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27987 + ... + 41042.

Almost surely, 2^450621312 is an apocalyptic number.

It is an amenable number.

450621312 is an abundant number, since it is smaller than the sum of its proper divisors (816769488).

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

450621312 is a wasteful number, since it uses less digits than its factorization.

450621312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69063 (or 69051 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 450621312 is about 21227.8428484856. The cubic root of 450621312 is about 766.6619496454.

Adding to 450621312 its reverse (213126054), we get a palindrome (663747366).

The spelling of 450621312 in words is "four hundred fifty million, six hundred twenty-one thousand, three hundred twelve".