451444484 has 24 divisors (see below), whose sum is σ = 834607200. Its totient is φ = 213071040.

The previous prime is 451444457. The next prime is 451444489. The reversal of 451444484 is 484444154.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (451444489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10787 + ... + 31925.

It is an arithmetic number, because the mean of its divisors is an integer number (34775300).

Almost surely, 2^451444484 is an apocalyptic number.

It is an amenable number.

451444484 is a deficient number, since it is larger than the sum of its proper divisors (383162716).

451444484 is a wasteful number, since it uses less digits than its factorization.

451444484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21443 (or 21441 counting only the distinct ones).

The product of its digits is 163840, while the sum is 38.

The square root of 451444484 is about 21247.2229714850. Note that the first 3 decimals coincide. The cubic root of 451444484 is about 767.1284986370.

The spelling of 451444484 in words is "four hundred fifty-one million, four hundred forty-four thousand, four hundred eighty-four".