2194215500 has 48 divisors (see below), whose sum is σ = 5074078464. Its totient is φ = 826054400.

The previous prime is 2194215493. The next prime is 2194215521. The reversal of 2194215500 is 55124912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120572 + ... + 137571.

It is an arithmetic number, because the mean of its divisors is an integer number (105709968).

Almost surely, 2^2194215500 is an apocalyptic number.

2194215500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2194215500 is an abundant number, since it is smaller than the sum of its proper divisors (2879862964).

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

2194215500 is a wasteful number, since it uses less digits than its factorization.

2194215500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258179 (or 258167 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2194215500 is about 46842.4540347749. The cubic root of 2194215500 is about 1299.4505567659.

The spelling of 2194215500 in words is "two billion, one hundred ninety-four million, two hundred fifteen thousand, five hundred".