2161662 has 8 divisors (see below), whose sum is σ = 4323336. Its totient is φ = 720552.

The previous prime is 2161639. The next prime is 2161697. The reversal of 2161662 is 2661612.

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

2161662 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

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, 180133 + ... + 180144.

It is an arithmetic number, because the mean of its divisors is an integer number (540417).

2^2161662 is an apocalyptic number.

2161662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161662 is a wasteful number, since it uses less digits than its factorization.

2161662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360282.

The product of its digits is 864, while the sum is 24.

The square root of 2161662 is about 1470.2591608285. The cubic root of 2161662 is about 129.2992272581.

The spelling of 2161662 in words is "two million, one hundred sixty-one thousand, six hundred sixty-two".