2165232 has 40 divisors (see below), whose sum is σ = 5674240. Its totient is φ = 711360.

The previous prime is 2165231. The next prime is 2165237. The reversal of 2165232 is 2325612.

It is a super-2 number, since 2×2165232² = 9376459227648, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2165199 and 2165208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3507 + ... + 4077.

It is an arithmetic number, because the mean of its divisors is an integer number (141856).

2^2165232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2837120).

2165232 is an abundant number, since it is smaller than the sum of its proper divisors (3509008).

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

2165232 is a wasteful number, since it uses less digits than its factorization.

2165232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 2165232 is about 1471.4727316536. The cubic root of 2165232 is about 129.3703676374.

The spelling of 2165232 in words is "two million, one hundred sixty-five thousand, two hundred thirty-two".