452440555021 has 64 divisors (see below), whose sum is σ = 582328051200. Its totient is φ = 341877989376.

The previous prime is 452440555009. The next prime is 452440555027. The reversal of 452440555021 is 120555044254.

It is not a de Polignac number, because 452440555021 - 2⁷ = 452440554893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452440555027) 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 63 ways as a sum of consecutive naturals, for example, 183992490 + ... + 183994948.

It is an arithmetic number, because the mean of its divisors is an integer number (9098875800).

Almost surely, 2^452440555021 is an apocalyptic number.

It is an amenable number.

452440555021 is a deficient number, since it is larger than the sum of its proper divisors (129887496179).

452440555021 is a wasteful number, since it uses less digits than its factorization.

452440555021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238.

The product of its (nonzero) digits is 160000, while the sum is 37.

Adding to 452440555021 its reverse (120555044254), we get a palindrome (572995599275).

The spelling of 452440555021 in words is "four hundred fifty-two billion, four hundred forty million, five hundred fifty-five thousand, twenty-one".