451533312 has 160 divisors (see below), whose sum is σ = 1355270400. Its totient is φ = 148414464.

The previous prime is 451533283. The next prime is 451533317. The reversal of 451533312 is 213335154.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (451533317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230153 + ... + 1230519.

It is an arithmetic number, because the mean of its divisors is an integer number (8470440).

Almost surely, 2^451533312 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 451533312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677635200).

451533312 is an abundant number, since it is smaller than the sum of its proper divisors (903737088).

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

451533312 is an equidigital number, since it uses as much as digits as its factorization.

451533312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 461 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 451533312 is about 21249.3132124311. The cubic root of 451533312 is about 767.1788097486.

Adding to 451533312 its reverse (213335154), we get a palindrome (664868466).

The spelling of 451533312 in words is "four hundred fifty-one million, five hundred thirty-three thousand, three hundred twelve".