452421254440 has 64 divisors (see below), whose sum is σ = 1022536742400. Its totient is φ = 180153189888.

The previous prime is 452421254413. The next prime is 452421254443. The reversal of 452421254440 is 44452124254.

It is a self number, because there is not a number n which added to its sum of digits gives 452421254440.

It is not an unprimeable number, because it can be changed into a prime (452421254443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41360652 + ... + 41371588.

It is an arithmetic number, because the mean of its divisors is an integer number (15977136600).

Almost surely, 2^452421254440 is an apocalyptic number.

452421254440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

452421254440 is an abundant number, since it is smaller than the sum of its proper divisors (570115487960).

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

452421254440 is a wasteful number, since it uses less digits than its factorization.

452421254440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15514 (or 15510 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 452421254440 its reverse (44452124254), we get a palindrome (496873378694).

The spelling of 452421254440 in words is "four hundred fifty-two billion, four hundred twenty-one million, two hundred fifty-four thousand, four hundred forty".