2194500100 has 36 divisors (see below), whose sum is σ = 5128380964. Its totient is φ = 810276480.

The previous prime is 2194500089. The next prime is 2194500101. The reversal of 2194500100 is 10054912.

It can be written as a sum of positive squares in 6 ways, for example, as 2762244 + 2191737856 = 1662^2 + 46816^2 .

It is not an unprimeable number, because it can be changed into a prime (2194500101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 842739 + ... + 845338.

Almost surely, 2^2194500100 is an apocalyptic number.

2194500100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2194500100 is an abundant number, since it is smaller than the sum of its proper divisors (2933880864).

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

2194500100 is a wasteful number, since it uses less digits than its factorization.

2194500100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688104 (or 1688097 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2194500100 is about 46845.4917788254. The cubic root of 2194500100 is about 1299.5067359395.

The spelling of 2194500100 in words is "two billion, one hundred ninety-four million, five hundred thousand, one hundred".