2138896 has 20 divisors (see below), whose sum is σ = 4257292. Its totient is φ = 1040256.

The previous prime is 2138879. The next prime is 2138897. The reversal of 2138896 is 6988312.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 1392400 = 864^2 + 1180^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (2138897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215 + ... + 2398.

2^2138896 is an apocalyptic number.

It is an amenable number.

2138896 is a deficient number, since it is larger than the sum of its proper divisors (2118396).

2138896 is a wasteful number, since it uses less digits than its factorization.

2138896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658 (or 3652 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 2138896 is about 1462.4964957223. The cubic root of 2138896 is about 128.8437103295.

The spelling of 2138896 in words is "two million, one hundred thirty-eight thousand, eight hundred ninety-six".