451027434 has 128 divisors (see below), whose sum is σ = 1133798400. Its totient is φ = 117573120.

The previous prime is 451027433. The next prime is 451027457. The reversal of 451027434 is 434720154.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (451027433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1189857 + ... + 1190235.

It is an arithmetic number, because the mean of its divisors is an integer number (8857800).

Almost surely, 2^451027434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451027434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566899200).

451027434 is an abundant number, since it is smaller than the sum of its proper divisors (682770966).

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

451027434 is a wasteful number, since it uses less digits than its factorization.

451027434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 451027434 is about 21237.4064800766. The cubic root of 451027434 is about 766.8921982568.

Adding to 451027434 its reverse (434720154), we get a palindrome (885747588).

The spelling of 451027434 in words is "four hundred fifty-one million, twenty-seven thousand, four hundred thirty-four".