452143444020242 has 32 divisors (see below), whose sum is σ = 732499729718400. Its totient is φ = 208077557326848.

The previous prime is 452143444020239. The next prime is 452143444020283. The reversal of 452143444020242 is 242020444341254.

It is a super-2 number, since 2×452143444020242² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 452143444020242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829471859 + ... + 830016777.

It is an arithmetic number, because the mean of its divisors is an integer number (22890616553700).

Almost surely, 2^{452143444020242} is an apocalyptic number.

452143444020242 is a deficient number, since it is larger than the sum of its proper divisors (280356285698158).

452143444020242 is a wasteful number, since it uses less digits than its factorization.

452143444020242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637250.

The product of its (nonzero) digits is 983040, while the sum is 41.

Adding to 452143444020242 its reverse (242020444341254), we get a palindrome (694163888361496).

The spelling of 452143444020242 in words is "four hundred fifty-two trillion, one hundred forty-three billion, four hundred forty-four million, twenty thousand, two hundred forty-two".