20242442040 has 64 divisors (see below), whose sum is σ = 60802682400. Its totient is φ = 5391286272.

The previous prime is 20242442027. The next prime is 20242442063. The reversal of 20242442040 is 4024424202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20242442040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7177 + ... + 201336.

Almost surely, 2^20242442040 is an apocalyptic number.

20242442040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20242442040 is an abundant number, since it is smaller than the sum of its proper divisors (40560240360).

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

20242442040 is a wasteful number, since it uses less digits than its factorization.

20242442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209336 (or 209332 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20242442040 its reverse (4024424202), we get a palindrome (24266866242).

The spelling of 20242442040 in words is "twenty billion, two hundred forty-two million, four hundred forty-two thousand, forty".