20245003140 has 24 divisors (see below), whose sum is σ = 56686008960. Its totient is φ = 5398667488.

The previous prime is 20245003111. The next prime is 20245003151. The reversal of 20245003140 is 4130054202.

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, 168708300 + ... + 168708419.

It is an arithmetic number, because the mean of its divisors is an integer number (2361917040).

Almost surely, 2^20245003140 is an apocalyptic number.

20245003140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20245003140 is an abundant number, since it is smaller than the sum of its proper divisors (36441005820).

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

20245003140 is a wasteful number, since it uses less digits than its factorization.

20245003140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337416731 (or 337416729 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20245003140 its reverse (4130054202), we get a palindrome (24375057342).

The spelling of 20245003140 in words is "twenty billion, two hundred forty-five million, three thousand, one hundred forty".