451843944 has 64 divisors (see below), whose sum is σ = 1165207680. Its totient is φ = 145920000.

The previous prime is 451843943. The next prime is 451843967. The reversal of 451843944 is 449348154.

It is a junction number, because it is equal to n+sod(n) for n = 451843896 and 451843905.

It is not an unprimeable number, because it can be changed into a prime (451843943) 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 15 ways as a sum of consecutive naturals, for example, 147064 + ... + 150104.

It is an arithmetic number, because the mean of its divisors is an integer number (18206370).

Almost surely, 2^451843944 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 451843944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582603840).

451843944 is an abundant number, since it is smaller than the sum of its proper divisors (713363736).

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

451843944 is a wasteful number, since it uses less digits than its factorization.

451843944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242 (or 3238 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 451843944 is about 21256.6211802346. The cubic root of 451843944 is about 767.3546961148.

The spelling of 451843944 in words is "four hundred fifty-one million, eight hundred forty-three thousand, nine hundred forty-four".