20244402040 has 16 divisors (see below), whose sum is σ = 45549904680. Its totient is φ = 8097760800.

The previous prime is 20244402011. The next prime is 20244402049. The reversal of 20244402040 is 4020444202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244402049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253054986 + ... + 253055065.

Almost surely, 2^20244402040 is an apocalyptic number.

20244402040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20244402040 is an abundant number, since it is smaller than the sum of its proper divisors (25305502640).

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

20244402040 is a wasteful number, since it uses less digits than its factorization.

20244402040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506110062 (or 506110058 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20244402040 its reverse (4020444202), we get a palindrome (24264846242).

The spelling of 20244402040 in words is "twenty billion, two hundred forty-four million, four hundred two thousand, forty".