20244645300 has 144 divisors (see below), whose sum is σ = 64003028544. Its totient is φ = 4899840000.

The previous prime is 20244645299. The next prime is 20244645341. The reversal of 20244645300 is 354644202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2176660 + ... + 2185940.

It is an arithmetic number, because the mean of its divisors is an integer number (444465476).

Almost surely, 2^20244645300 is an apocalyptic number.

20244645300 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 20244645300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32001514272).

20244645300 is an abundant number, since it is smaller than the sum of its proper divisors (43758383244).

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

20244645300 is a wasteful number, since it uses less digits than its factorization.

20244645300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9970 (or 9963 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The spelling of 20244645300 in words is "twenty billion, two hundred forty-four million, six hundred forty-five thousand, three hundred".