20282442558 has 32 divisors (see below), whose sum is σ = 46364098560. Its totient is φ = 5794454880.

The previous prime is 20282442553. The next prime is 20282442577. The reversal of 20282442558 is 85524428202.

It is a happy number.

It is a super-2 number, since 2×20282442558² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20282442553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848328 + ... + 871908.

It is an arithmetic number, because the mean of its divisors is an integer number (1448878080).

Almost surely, 2^20282442558 is an apocalyptic number.

20282442558 is an abundant number, since it is smaller than the sum of its proper divisors (26081656002).

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

20282442558 is a wasteful number, since it uses less digits than its factorization.

20282442558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44072.

The product of its (nonzero) digits is 409600, while the sum is 42.

The spelling of 20282442558 in words is "twenty billion, two hundred eighty-two million, four hundred forty-two thousand, five hundred fifty-eight".