20042422040 has 16 divisors (see below), whose sum is σ = 45095449680. Its totient is φ = 8016968800.

The previous prime is 20042422027. The next prime is 20042422063. The reversal of 20042422040 is 4022424002.

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

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 3 ways as a sum of consecutive naturals, for example, 250530236 + ... + 250530315.

It is an arithmetic number, because the mean of its divisors is an integer number (2818465605).

Almost surely, 2^20042422040 is an apocalyptic number.

20042422040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042422040 is an abundant number, since it is smaller than the sum of its proper divisors (25053027640).

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

20042422040 is a wasteful number, since it uses less digits than its factorization.

20042422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501060562 (or 501060558 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20042422040 its reverse (4022424002), we get a palindrome (24064846042).

The spelling of 20042422040 in words is "twenty billion, forty-two million, four hundred twenty-two thousand, forty".