451440240244 has 48 divisors (see below), whose sum is σ = 934125655680. Its totient is φ = 186780585600.

The previous prime is 451440240241. The next prime is 451440240257. The reversal of 451440240244 is 442042044154.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451440240241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7970794 + ... + 8027230.

It is an arithmetic number, because the mean of its divisors is an integer number (19460951160).

Almost surely, 2^451440240244 is an apocalyptic number.

It is an amenable number.

451440240244 is an abundant number, since it is smaller than the sum of its proper divisors (482685415436).

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

451440240244 is a wasteful number, since it uses less digits than its factorization.

451440240244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66328 (or 66326 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 451440240244 its reverse (442042044154), we get a palindrome (893482284398).

The spelling of 451440240244 in words is "four hundred fifty-one billion, four hundred forty million, two hundred forty thousand, two hundred forty-four".