2123398200 has 768 divisors, whose sum is σ = 8999424000. Its totient is φ = 400896000.

The previous prime is 2123398171. The next prime is 2123398247. The reversal of 2123398200 is 28933212.

It is a happy number.

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 191 ways as a sum of consecutive naturals, for example, 35989771 + ... + 35989829.

It is an arithmetic number, because the mean of its divisors is an integer number (11718000).

Almost surely, 2^2123398200 is an apocalyptic number.

2123398200 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 2123398200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4499712000).

2123398200 is an abundant number, since it is smaller than the sum of its proper divisors (6876025800).

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

2123398200 is a wasteful number, since it uses less digits than its factorization.

2123398200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2123398200 is about 46080.3450507914. The cubic root of 2123398200 is about 1285.3176804933.

The spelling of 2123398200 in words is "two billion, one hundred twenty-three million, three hundred ninety-eight thousand, two hundred".