2163394 has 8 divisors (see below), whose sum is σ = 3263760. Its totient is φ = 1075476.

The previous prime is 2163361. The next prime is 2163401. The reversal of 2163394 is 4933612.

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 2¹⁵ + 1 + 6² + 3¹² + 3¹³ + 9³ + 4⁶ .

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, 2664 + ... + 3379.

It is an arithmetic number, because the mean of its divisors is an integer number (407970).

2^2163394 is an apocalyptic number.

2163394 is a deficient number, since it is larger than the sum of its proper divisors (1100366).

2163394 is a wasteful number, since it uses less digits than its factorization.

2163394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224.

The product of its digits is 3888, while the sum is 28.

The square root of 2163394 is about 1470.8480546950. The cubic root of 2163394 is about 129.3337510762. Note that the first 3 decimals are identical.

The spelling of 2163394 in words is "two million, one hundred sixty-three thousand, three hundred ninety-four".