2198415388 has 24 divisors (see below), whose sum is σ = 4167993312. Its totient is φ = 1008573504.

The previous prime is 2198415379. The next prime is 2198415403. The reversal of 2198415388 is 8835148912.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117895 + ... + 135262.

It is an arithmetic number, because the mean of its divisors is an integer number (173666388).

Almost surely, 2^2198415388 is an apocalyptic number.

It is an amenable number.

2198415388 is a deficient number, since it is larger than the sum of its proper divisors (1969577924).

2198415388 is a wasteful number, since it uses less digits than its factorization.

2198415388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253341 (or 253339 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 2198415388 is about 46887.2625347226. The cubic root of 2198415388 is about 1300.2791093019.

The spelling of 2198415388 in words is "two billion, one hundred ninety-eight million, four hundred fifteen thousand, three hundred eighty-eight".