2163472 has 20 divisors (see below), whose sum is σ = 4374720. Its totient is φ = 1034528.

The previous prime is 2163467. The next prime is 2163479. The reversal of 2163472 is 2743612.

It is a super-2 number, since 2×2163472² = 9361222189568, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2163479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572 + ... + 3307.

It is an arithmetic number, because the mean of its divisors is an integer number (218736).

2^2163472 is an apocalyptic number.

It is an amenable number.

2163472 is an abundant number, since it is smaller than the sum of its proper divisors (2211248).

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

2163472 is a wasteful number, since it uses less digits than its factorization.

2163472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910 (or 5904 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 2163472 is about 1470.8745697713. The cubic root of 2163472 is about 129.3353054103.

The spelling of 2163472 in words is "two million, one hundred sixty-three thousand, four hundred seventy-two".