451444534 has 4 divisors (see below), whose sum is σ = 677166804. Its totient is φ = 225722266.

The previous prime is 451444531. The next prime is 451444547. The reversal of 451444534 is 435444154.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 451444534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451444531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112861132 + ... + 112861135.

It is an arithmetic number, because the mean of its divisors is an integer number (169291701).

Almost surely, 2^451444534 is an apocalyptic number.

451444534 is a deficient number, since it is larger than the sum of its proper divisors (225722270).

451444534 is a wasteful number, since it uses less digits than its factorization.

451444534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225722269.

The product of its digits is 76800, while the sum is 34.

The square root of 451444534 is about 21247.2241481093. The cubic root of 451444534 is about 767.1285269583.

Adding to 451444534 its reverse (435444154), we get a palindrome (886888688).

The spelling of 451444534 in words is "four hundred fifty-one million, four hundred forty-four thousand, five hundred thirty-four".