452224421440 has 56 divisors (see below), whose sum is σ = 1174755722112. Its totient is φ = 164445242880.

The previous prime is 452224421437. The next prime is 452224421461. The reversal of 452224421440 is 44124422254.

It is a junction number, because it is equal to n+sod(n) for n = 452224421396 and 452224421405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64232904 + ... + 64239943.

It is an arithmetic number, because the mean of its divisors is an integer number (20977780752).

Almost surely, 2^452224421440 is an apocalyptic number.

452224421440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

452224421440 is an abundant number, since it is smaller than the sum of its proper divisors (722531300672).

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

452224421440 is a wasteful number, since it uses less digits than its factorization.

452224421440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128472875 (or 128472865 counting only the distinct ones).

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

Adding to 452224421440 its reverse (44124422254), we get a palindrome (496348843694).

The spelling of 452224421440 in words is "four hundred fifty-two billion, two hundred twenty-four million, four hundred twenty-one thousand, four hundred forty".