2198938700 has 72 divisors (see below), whose sum is σ = 5564748000. Its totient is φ = 753910080.

The previous prime is 2198938697. The next prime is 2198938733. The reversal of 2198938700 is 78398912.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2246 + ... + 66354.

Almost surely, 2^2198938700 is an apocalyptic number.

2198938700 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 2198938700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2782374000).

2198938700 is an abundant number, since it is smaller than the sum of its proper divisors (3365809300).

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

2198938700 is a wasteful number, since it uses less digits than its factorization.

2198938700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64144 (or 64123 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 2198938700 is about 46892.8427374583. The cubic root of 2198938700 is about 1300.3822741663.

The spelling of 2198938700 in words is "two billion, one hundred ninety-eight million, nine hundred thirty-eight thousand, seven hundred".