20242355040 has 72 divisors (see below), whose sum is σ = 69077041488. Its totient is φ = 5397960960.

The previous prime is 20242355009. The next prime is 20242355041. The reversal of 20242355040 is 4055324202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 20242354995 and 20242355013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242355041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7027156 + ... + 7030035.

It is an arithmetic number, because the mean of its divisors is an integer number (959403354).

Almost surely, 2^20242355040 is an apocalyptic number.

20242355040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20242355040 is an abundant number, since it is smaller than the sum of its proper divisors (48834686448).

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

20242355040 is a wasteful number, since it uses less digits than its factorization.

20242355040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14057212 (or 14057201 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 20242355040 its reverse (4055324202), we get a palindrome (24297679242).

The spelling of 20242355040 in words is "twenty billion, two hundred forty-two million, three hundred fifty-five thousand, forty".