2138356 has 24 divisors (see below), whose sum is σ = 4261824. Its totient is φ = 929280.

The previous prime is 2138327. The next prime is 2138363. The reversal of 2138356 is 6538312.

It is a super-3 number, since 3×2138356³ = 29333324279765466048, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2¹⁸ + 1 + 3⁹ + 8⁶ + 3¹³ + 5² + 6² .

It is a congruent number.

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, 45 + ... + 2068.

It is an arithmetic number, because the mean of its divisors is an integer number (177576).

2^2138356 is an apocalyptic number.

It is an amenable number.

2138356 is a deficient number, since it is larger than the sum of its proper divisors (2123468).

2138356 is a wasteful number, since it uses less digits than its factorization.

2138356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2149 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 2138356 is about 1462.3118682415. The cubic root of 2138356 is about 128.8328665017.

The spelling of 2138356 in words is "two million, one hundred thirty-eight thousand, three hundred fifty-six".