20242649088 has 520 divisors, whose sum is σ = 66436152552. Its totient is φ = 6115295232.

The previous prime is 20242649087. The next prime is 20242649101. The reversal of 20242649088 is 88094624202.

It can be written as a sum of positive squares in 4 ways, for example, as 9252900864 + 10989748224 = 96192^2 + 104832^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242649087) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 208687056 + ... + 208687152.

Almost surely, 2^20242649088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20242649088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33218076276).

20242649088 is an abundant number, since it is smaller than the sum of its proper divisors (46193503464).

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

20242649088 is an equidigital number, since it uses as much as digits as its factorization.

20242649088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 20242649088 in words is "twenty billion, two hundred forty-two million, six hundred forty-nine thousand, eighty-eight".