20398242960 has 200 divisors, whose sum is σ = 71039738880. Its totient is φ = 5424668928.

The previous prime is 20398242941. The next prime is 20398242971. The reversal of 20398242960 is 6924289302.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2477731 + ... + 2485949.

Almost surely, 2^20398242960 is an apocalyptic number.

20398242960 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 20398242960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35519869440).

20398242960 is an abundant number, since it is smaller than the sum of its proper divisors (50641495920).

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

20398242960 is a wasteful number, since it uses less digits than its factorization.

20398242960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627 (or 8612 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 20398242960 in words is "twenty billion, three hundred ninety-eight million, two hundred forty-two thousand, nine hundred sixty".