2198617406 has 8 divisors (see below), whose sum is σ = 3310466544. Its totient is φ = 1095128560.

The previous prime is 2198617387. The next prime is 2198617411. The reversal of 2198617406 is 6047168912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089415 + ... + 2090466.

It is an arithmetic number, because the mean of its divisors is an integer number (413808318).

Almost surely, 2^2198617406 is an apocalyptic number.

2198617406 is a deficient number, since it is larger than the sum of its proper divisors (1111849138).

2198617406 is a wasteful number, since it uses less digits than its factorization.

2198617406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180146.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2198617406 is about 46889.4167803354. The cubic root of 2198617406 is about 1300.3189367371.

The spelling of 2198617406 in words is "two billion, one hundred ninety-eight million, six hundred seventeen thousand, four hundred six".