2158896 has 40 divisors (see below), whose sum is σ = 5718384. Its totient is φ = 701440.

The previous prime is 2158889. The next prime is 2158903. The reversal of 2158896 is 6988512.

It is an interprime number because it is at equal distance from previous prime (2158889) and next prime (2158903).

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, 1420 + ... + 2516.

2^2158896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2859192).

2158896 is an abundant number, since it is smaller than the sum of its proper divisors (3559488).

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

2158896 is a wasteful number, since it uses less digits than its factorization.

2158896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1143 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 2158896 is about 1469.3182092386. The cubic root of 2158896 is about 129.2440545386.

The spelling of 2158896 in words is "two million, one hundred fifty-eight thousand, eight hundred ninety-six".