2158898 has 32 divisors (see below), whose sum is σ = 4022784. Its totient is φ = 847872.

The previous prime is 2158889. The next prime is 2158903. The reversal of 2158898 is 8988512.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11090 + ... + 11282.

It is an arithmetic number, because the mean of its divisors is an integer number (125712).

2^2158898 is an apocalyptic number.

2158898 is a deficient number, since it is larger than the sum of its proper divisors (1863886).

2158898 is a wasteful number, since it uses less digits than its factorization.

2158898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266.

The product of its digits is 46080, while the sum is 41.

The square root of 2158898 is about 1469.3188898262. The cubic root of 2158898 is about 129.2440944491.

The spelling of 2158898 in words is "two million, one hundred fifty-eight thousand, eight hundred ninety-eight".