2164942 has 8 divisors (see below), whose sum is σ = 3497256. Its totient is φ = 999192.

The previous prime is 2164927. The next prime is 2164963. The reversal of 2164942 is 2494612.

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

It is a d-powerful number, because it can be written as 2¹³ + 1 + 6² + 4⁴ + 9⁵ + 4⁴ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 2164942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41608 + ... + 41659.

It is an arithmetic number, because the mean of its divisors is an integer number (437157).

2^2164942 is an apocalyptic number.

2164942 is a deficient number, since it is larger than the sum of its proper divisors (1332314).

2164942 is a wasteful number, since it uses less digits than its factorization.

2164942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83282.

The product of its digits is 3456, while the sum is 28.

The square root of 2164942 is about 1471.3741876219. The cubic root of 2164942 is about 129.3645916463.

The spelling of 2164942 in words is "two million, one hundred sixty-four thousand, nine hundred forty-two".