2162403 has 12 divisors (see below), whose sum is σ = 3214920. Its totient is φ = 1436508.

The previous prime is 2162401. The next prime is 2162441. The reversal of 2162403 is 3042612.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 2162403 - 2¹ = 2162401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2162401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7500 + ... + 7782.

It is an arithmetic number, because the mean of its divisors is an integer number (267910).

2^2162403 is an apocalyptic number.

2162403 is a deficient number, since it is larger than the sum of its proper divisors (1052517).

2162403 is an frugal number, since it uses more digits than its factorization.

2162403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2162403 is about 1470.5111356260. The cubic root of 2162403 is about 129.3139998084.

The spelling of 2162403 in words is "two million, one hundred sixty-two thousand, four hundred three".