20224042040 has 64 divisors (see below), whose sum is σ = 47539548000. Its totient is φ = 7733286400.

The previous prime is 20224042001. The next prime is 20224042057. The reversal of 20224042040 is 4024042202.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30851 + ... + 203469.

Almost surely, 2^20224042040 is an apocalyptic number.

20224042040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20224042040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23769774000).

20224042040 is an abundant number, since it is smaller than the sum of its proper divisors (27315505960).

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

20224042040 is a wasteful number, since it uses less digits than its factorization.

20224042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172760 (or 172756 counting only the distinct ones).

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

Adding to 20224042040 its reverse (4024042202), we get a palindrome (24248084242).

The spelling of 20224042040 in words is "twenty billion, two hundred twenty-four million, forty-two thousand, forty".