20242144240 has 40 divisors (see below), whose sum is σ = 48064334400. Its totient is φ = 7924582656.

The previous prime is 20242144213. The next prime is 20242144259. The reversal of 20242144240 is 4244124202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 2688015 + ... + 2695534.

It is an arithmetic number, because the mean of its divisors is an integer number (1201608360).

Almost surely, 2^20242144240 is an apocalyptic number.

20242144240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20242144240 is an abundant number, since it is smaller than the sum of its proper divisors (27822190160).

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

20242144240 is a wasteful number, since it uses less digits than its factorization.

20242144240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383609 (or 5383603 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 20242144240 its reverse (4244124202), we get a palindrome (24486268442).

The spelling of 20242144240 in words is "twenty billion, two hundred forty-two million, one hundred forty-four thousand, two hundred forty".