2143922 has 32 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 879120.

The previous prime is 2143909. The next prime is 2143943. The reversal of 2143922 is 2293412.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9503 + ... + 9725.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^2143922 is an apocalyptic number.

2143922 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2143922 is a deficient number, since it is larger than the sum of its proper divisors (1726798).

2143922 is a wasteful number, since it uses less digits than its factorization.

2143922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its digits is 864, while the sum is 23.

The square root of 2143922 is about 1464.2137822053. The cubic root of 2143922 is about 128.9445508142.

The spelling of 2143922 in words is "two million, one hundred forty-three thousand, nine hundred twenty-two".