2138288 has 20 divisors (see below), whose sum is σ = 4185000. Its totient is φ = 1058304.

The previous prime is 2138263. The next prime is 2138291. The reversal of 2138288 is 8828312.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 1088 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (209250).

2^2138288 is an apocalyptic number.

It is an amenable number.

2138288 is a deficient number, since it is larger than the sum of its proper divisors (2046712).

2138288 is a wasteful number, since it uses less digits than its factorization.

2138288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1358 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 2138288 is about 1462.2886172025. The cubic root of 2138288 is about 128.8315008532.

The spelling of 2138288 in words is "two million, one hundred thirty-eight thousand, two hundred eighty-eight".