20200240242 has 160 divisors (see below), whose sum is σ = 58986652032. Its totient is φ = 5014089216.

The previous prime is 20200240213. The next prime is 20200240271. The reversal of 20200240242 is 24204200202.

20200240242 is a `hidden beast` number, since 20 + 200 + 2 + 402 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (20200240213) and next prime (20200240271).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 210313 + ... + 290915.

Almost surely, 2^20200240242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200240242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29493326016).

20200240242 is an abundant number, since it is smaller than the sum of its proper divisors (38786411790).

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

20200240242 is a wasteful number, since it uses less digits than its factorization.

20200240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80654 (or 80645 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20200240242 its reverse (24204200202), we get a palindrome (44404440444).

The spelling of 20200240242 in words is "twenty billion, two hundred million, two hundred forty thousand, two hundred forty-two".