2166452 has 6 divisors (see below), whose sum is σ = 3791298. Its totient is φ = 1083224.

The previous prime is 2166449. The next prime is 2166457. The reversal of 2166452 is 2546612.

It can be written as a sum of positive squares in only one way, i.e., 1653796 + 512656 = 1286^2 + 716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270803 + ... + 270810.

It is an arithmetic number, because the mean of its divisors is an integer number (631883).

2^2166452 is an apocalyptic number.

It is an amenable number.

2166452 is a deficient number, since it is larger than the sum of its proper divisors (1624846).

2166452 is a wasteful number, since it uses less digits than its factorization.

2166452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541617 (or 541615 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2166452 is about 1471.8872239407. The cubic root of 2166452 is about 129.3946609870.

The spelling of 2166452 in words is "two million, one hundred sixty-six thousand, four hundred fifty-two".