451065272 has 64 divisors (see below), whose sum is σ = 1004451840. Its totient is φ = 185875200.

The previous prime is 451065271. The next prime is 451065281. The reversal of 451065272 is 272560154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451065271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161633 + ... + 164399.

It is an arithmetic number, because the mean of its divisors is an integer number (15694560).

Almost surely, 2^451065272 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 451065272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502225920).

451065272 is an abundant number, since it is smaller than the sum of its proper divisors (553386568).

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

451065272 is a wasteful number, since it uses less digits than its factorization.

451065272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892 (or 2888 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 451065272 is about 21238.2972952165. The cubic root of 451065272 is about 766.9136432609.

The spelling of 451065272 in words is "four hundred fifty-one million, sixty-five thousand, two hundred seventy-two".