2164436 has 12 divisors (see below), whose sum is σ = 3798228. Its totient is φ = 1079232.

The previous prime is 2164433. The next prime is 2164441. The reversal of 2164436 is 6344612.

It can be written as a sum of positive squares in 2 ways, for example, as 828100 + 1336336 = 910^2 + 1156^2 .

It is a d-powerful number, because it can be written as 2²¹ + 1 + 6 + 4⁶ + 4⁶ + 3¹⁰ + 6² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164433) 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, 2030 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (316519).

2^2164436 is an apocalyptic number.

It is an amenable number.

2164436 is a deficient number, since it is larger than the sum of its proper divisors (1633792).

2164436 is a wasteful number, since it uses less digits than its factorization.

2164436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1496 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 2164436 is about 1471.2022294709. The cubic root of 2164436 is about 129.3545123026.

The spelling of 2164436 in words is "two million, one hundred sixty-four thousand, four hundred thirty-six".