20244143040 has 112 divisors (see below), whose sum is σ = 70118386560. Its totient is φ = 4907668480.

The previous prime is 20244143011. The next prime is 20244143041. The reversal of 20244143040 is 4034144202.

It is a happy number.

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 20244143040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244143041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 947970 + ... + 969089.

Almost surely, 2^20244143040 is an apocalyptic number.

20244143040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20244143040 is an abundant number, since it is smaller than the sum of its proper divisors (49874243520).

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

20244143040 is a wasteful number, since it uses less digits than its factorization.

20244143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917090 (or 1917080 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20244143040 its reverse (4034144202), we get a palindrome (24278287242).

The spelling of 20244143040 in words is "twenty billion, two hundred forty-four million, one hundred forty-three thousand, forty".