20020481834 has 16 divisors (see below), whose sum is σ = 31820040000. Its totient is φ = 9414646464.

The previous prime is 20020481821. The next prime is 20020481839. The reversal of 20020481834 is 43818402002.

It is a self number, because there is not a number n which added to its sum of digits gives 20020481834.

It is not an unprimeable number, because it can be changed into a prime (20020481839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162884 + ... + 258015.

It is an arithmetic number, because the mean of its divisors is an integer number (1988752500).

Almost surely, 2^20020481834 is an apocalyptic number.

20020481834 is a deficient number, since it is larger than the sum of its proper divisors (11799558166).

20020481834 is a wasteful number, since it uses less digits than its factorization.

20020481834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422317.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 20020481834 its reverse (43818402002), we get a palindrome (63838883836).

The spelling of 20020481834 in words is "twenty billion, twenty million, four hundred eighty-one thousand, eight hundred thirty-four".