2309980500 has 288 divisors, whose sum is σ = 7795307520. Its totient is φ = 574560000.

The previous prime is 2309980489. The next prime is 2309980571. The reversal of 2309980500 is 50899032.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4045215 + ... + 4045785.

It is an arithmetic number, because the mean of its divisors is an integer number (27067040).

Almost surely, 2^2309980500 is an apocalyptic number.

2309980500 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 2309980500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3897653760).

2309980500 is an abundant number, since it is smaller than the sum of its proper divisors (5485327020).

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

2309980500 is a wasteful number, since it uses less digits than its factorization.

2309980500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2309980500 is about 48062.2565013338. The cubic root of 2309980500 is about 1321.9126885956.

The spelling of 2309980500 in words is "two billion, three hundred nine million, nine hundred eighty thousand, five hundred".