20042530340 has 24 divisors (see below), whose sum is σ = 48102073152. Its totient is φ = 6871724640.

The previous prime is 20042530337. The next prime is 20042530357. The reversal of 20042530340 is 4303524002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71580326 + ... + 71580605.

It is an arithmetic number, because the mean of its divisors is an integer number (2004253048).

Almost surely, 2^20042530340 is an apocalyptic number.

20042530340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042530340 is an abundant number, since it is smaller than the sum of its proper divisors (28059542812).

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

20042530340 is a wasteful number, since it uses less digits than its factorization.

20042530340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143160947 (or 143160945 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The spelling of 20042530340 in words is "twenty billion, forty-two million, five hundred thirty thousand, three hundred forty".