20442536452 has 24 divisors (see below), whose sum is σ = 38530219392. Its totient is φ = 9434061600.

The previous prime is 20442536437. The next prime is 20442536453. The reversal of 20442536452 is 25463524402.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20442536453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935127 + ... + 956737.

It is an arithmetic number, because the mean of its divisors is an integer number (1605425808).

Almost surely, 2^20442536452 is an apocalyptic number.

It is an amenable number.

20442536452 is a deficient number, since it is larger than the sum of its proper divisors (18087682940).

20442536452 is a wasteful number, since it uses less digits than its factorization.

20442536452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39819 (or 39817 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

The spelling of 20442536452 in words is "twenty billion, four hundred forty-two million, five hundred thirty-six thousand, four hundred fifty-two".