20533241442 has 64 divisors (see below), whose sum is σ = 49958553600. Its totient is φ = 5495402880.

The previous prime is 20533241411. The next prime is 20533241453. The reversal of 20533241442 is 24414233502.

It is a super-2 number, since 2×20533241442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73534 + ... + 215577.

It is an arithmetic number, because the mean of its divisors is an integer number (780602400).

Almost surely, 2^20533241442 is an apocalyptic number.

20533241442 is an abundant number, since it is smaller than the sum of its proper divisors (29425312158).

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

20533241442 is a wasteful number, since it uses less digits than its factorization.

20533241442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289231.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20533241442 its reverse (24414233502), we get a palindrome (44947474944).

The spelling of 20533241442 in words is "twenty billion, five hundred thirty-three million, two hundred forty-one thousand, four hundred forty-two".