2138822 has 16 divisors (see below), whose sum is σ = 3766560. Its totient is φ = 891648.

The previous prime is 2138813. The next prime is 2138831. The reversal of 2138822 is 2288312.

It is an interprime number because it is at equal distance from previous prime (2138813) and next prime (2138831).

It is a junction number, because it is equal to n+sod(n) for n = 2138791 and 2138800.

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, 1547 + ... + 2582.

It is an arithmetic number, because the mean of its divisors is an integer number (235410).

2^2138822 is an apocalyptic number.

2138822 is a deficient number, since it is larger than the sum of its proper divisors (1627738).

2138822 is a wasteful number, since it uses less digits than its factorization.

2138822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175.

The product of its digits is 1536, while the sum is 26.

The square root of 2138822 is about 1462.4711962976. The cubic root of 2138822 is about 128.8422244313.

The spelling of 2138822 in words is "two million, one hundred thirty-eight thousand, eight hundred twenty-two".