2162890 has 8 divisors (see below), whose sum is σ = 3893220. Its totient is φ = 865152.

The previous prime is 2162879. The next prime is 2162899. The reversal of 2162890 is 982612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1968409 + 194481 = 1403^2 + 441^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2162899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108135 + ... + 108154.

2^2162890 is an apocalyptic number.

2162890 is a deficient number, since it is larger than the sum of its proper divisors (1730330).

2162890 is a wasteful number, since it uses less digits than its factorization.

2162890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216296.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2162890 is about 1470.6767149853. The cubic root of 2162890 is about 129.3237067858.

The spelling of 2162890 in words is "two million, one hundred sixty-two thousand, eight hundred ninety".