2138834 has 8 divisors (see below), whose sum is σ = 3214848. Its totient is φ = 1067220.

The previous prime is 2138833. The next prime is 2138861. The reversal of 2138834 is 4388312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2138834² = 9149221759112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2138797 and 2138806.

It is not an unprimeable number, because it can be changed into a prime (2138831) 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, 719 + ... + 2189.

It is an arithmetic number, because the mean of its divisors is an integer number (401856).

2^2138834 is an apocalyptic number.

2138834 is a deficient number, since it is larger than the sum of its proper divisors (1076014).

2138834 is a wasteful number, since it uses less digits than its factorization.

2138834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200.

The product of its digits is 4608, while the sum is 29.

The square root of 2138834 is about 1462.4752989367. The cubic root of 2138834 is about 128.8424653901.

The spelling of 2138834 in words is "two million, one hundred thirty-eight thousand, eight hundred thirty-four".