2143622 has 16 divisors (see below), whose sum is σ = 3583440. Its totient is φ = 954912.

The previous prime is 2143621. The next prime is 2143627. The reversal of 2143622 is 2263412.

It is a junction number, because it is equal to n+sod(n) for n = 2143594 and 2143603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (223965).

2^2143622 is an apocalyptic number.

2143622 is a deficient number, since it is larger than the sum of its proper divisors (1439818).

2143622 is a wasteful number, since it uses less digits than its factorization.

2143622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887.

The product of its digits is 576, while the sum is 20.

The square root of 2143622 is about 1464.1113345644. Note that the first 3 decimals coincide. The cubic root of 2143622 is about 128.9385361100.

The spelling of 2143622 in words is "two million, one hundred forty-three thousand, six hundred twenty-two".