451103232 has 120 divisors (see below), whose sum is σ = 1265213664. Its totient is φ = 142557184.

The previous prime is 451103231. The next prime is 451103243. The reversal of 451103232 is 232301154.

It is a junction number, because it is equal to n+sod(n) for n = 451103199 and 451103208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451103231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3992008 + ... + 3992120.

Almost surely, 2^451103232 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 451103232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632606832).

451103232 is an abundant number, since it is smaller than the sum of its proper divisors (814110432).

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

451103232 is an equidigital number, since it uses as much as digits as its factorization.

451103232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 451103232 is about 21239.1909450431. The cubic root of 451103232 is about 766.9351562045.

Adding to 451103232 its reverse (232301154), we get a palindrome (683404386).

The spelling of 451103232 in words is "four hundred fifty-one million, one hundred three thousand, two hundred thirty-two".