451113630 has 64 divisors (see below), whose sum is σ = 1186368768. Its totient is φ = 108872960.

The previous prime is 451113617. The next prime is 451113631. The reversal of 451113630 is 36311154.

It is a self number, because there is not a number n which added to its sum of digits gives 451113630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451113631) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 73957 + ... + 79823.

It is an arithmetic number, because the mean of its divisors is an integer number (18537012).

Almost surely, 2^451113630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451113630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593184384).

451113630 is an abundant number, since it is smaller than the sum of its proper divisors (735255138).

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

451113630 is a wasteful number, since it uses less digits than its factorization.

451113630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 451113630 is about 21239.4357269679. The cubic root of 451113630 is about 766.9410488177.

Adding to 451113630 its reverse (36311154), we get a palindrome (487424784).

The spelling of 451113630 in words is "four hundred fifty-one million, one hundred thirteen thousand, six hundred thirty".