451845472 has 48 divisors (see below), whose sum is σ = 971187840. Its totient is φ = 205673472.

The previous prime is 451845437. The next prime is 451845523. The reversal of 451845472 is 274548154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22929 + ... + 37807.

It is an arithmetic number, because the mean of its divisors is an integer number (20233080).

Almost surely, 2^451845472 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 451845472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485593920).

451845472 is an abundant number, since it is smaller than the sum of its proper divisors (519342368).

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

451845472 is a wasteful number, since it uses less digits than its factorization.

451845472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14975 (or 14967 counting only the distinct ones).

The product of its digits is 179200, while the sum is 40.

The square root of 451845472 is about 21256.6571219465. The cubic root of 451845472 is about 767.3555611013.

The spelling of 451845472 in words is "four hundred fifty-one million, eight hundred forty-five thousand, four hundred seventy-two".