2198071400 has 144 divisors (see below), whose sum is σ = 5978679840. Its totient is φ = 749347200.

The previous prime is 2198071363. The next prime is 2198071409. The reversal of 2198071400 is 41708912.

It is not an unprimeable number, because it can be changed into a prime (2198071409) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2067269 + ... + 2068331.

It is an arithmetic number, because the mean of its divisors is an integer number (41518610).

Almost surely, 2^2198071400 is an apocalyptic number.

2198071400 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 2198071400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2989339920).

2198071400 is an abundant number, since it is smaller than the sum of its proper divisors (3780608440).

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

2198071400 is a wasteful number, since it uses less digits than its factorization.

2198071400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 2198071400 is about 46883.5941455004. The cubic root of 2198071400 is about 1300.2112871570.

The spelling of 2198071400 in words is "two billion, one hundred ninety-eight million, seventy-one thousand, four hundred".