20042231608 has 32 divisors (see below), whose sum is σ = 42952665600. Its totient is φ = 8588522592.

The previous prime is 20042231591. The next prime is 20042231641. The reversal of 20042231608 is 80613224002.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654741 + ... + 684667.

It is an arithmetic number, because the mean of its divisors is an integer number (1342270800).

Almost surely, 2^20042231608 is an apocalyptic number.

20042231608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20042231608 is an abundant number, since it is smaller than the sum of its proper divisors (22910433992).

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

20042231608 is a wasteful number, since it uses less digits than its factorization.

20042231608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41899 (or 41895 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 20042231608 in words is "twenty billion, forty-two million, two hundred thirty-one thousand, six hundred eight".