20332402040 has 32 divisors (see below), whose sum is σ = 47736946080. Its totient is φ = 7779353472.

The previous prime is 20332402039. The next prime is 20332402049. The reversal of 20332402040 is 4020423302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332402049) 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, 11049299 + ... + 11051138.

It is an arithmetic number, because the mean of its divisors is an integer number (1491779565).

Almost surely, 2^20332402040 is an apocalyptic number.

20332402040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332402040 is an abundant number, since it is smaller than the sum of its proper divisors (27404544040).

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

20332402040 is a wasteful number, since it uses less digits than its factorization.

20332402040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22100471 (or 22100467 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20332402040 its reverse (4020423302), we get a palindrome (24352825342).

The spelling of 20332402040 in words is "twenty billion, three hundred thirty-two million, four hundred two thousand, forty".