20003534140 has 12 divisors (see below), whose sum is σ = 42007421736. Its totient is φ = 8001413648.

The previous prime is 20003534087. The next prime is 20003534141. The reversal of 20003534140 is 4143530002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003534141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 500088334 + ... + 500088373.

It is an arithmetic number, because the mean of its divisors is an integer number (3500618478).

Almost surely, 2^20003534140 is an apocalyptic number.

20003534140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003534140 is an abundant number, since it is smaller than the sum of its proper divisors (22003887596).

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

20003534140 is a wasteful number, since it uses less digits than its factorization.

20003534140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000176716 (or 1000176714 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 20003534140 in words is "twenty billion, three million, five hundred thirty-four thousand, one hundred forty".