2198590681 has 8 divisors (see below), whose sum is σ = 2644921280. Its totient is φ = 1785321648.

The previous prime is 2198590657. The next prime is 2198590747. The reversal of 2198590681 is 1860958912.

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

It is a cyclic number.

It is not a de Polignac number, because 2198590681 - 2⁹ = 2198590169 is a prime.

It is a super-2 number, since 2×2198590681² = 9667601965160087522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2198590621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8265246 + ... + 8265511.

It is an arithmetic number, because the mean of its divisors is an integer number (330615160).

Almost surely, 2^2198590681 is an apocalyptic number.

It is an amenable number.

2198590681 is a deficient number, since it is larger than the sum of its proper divisors (446330599).

2198590681 is a wasteful number, since it uses less digits than its factorization.

2198590681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16530783.

The product of its (nonzero) digits is 311040, while the sum is 49.

The square root of 2198590681 is about 46889.1318004503. The cubic root of 2198590681 is about 1300.3136680981.

The spelling of 2198590681 in words is "two billion, one hundred ninety-eight million, five hundred ninety thousand, six hundred eighty-one".