2104656 has 40 divisors (see below), whose sum is σ = 5490720. Its totient is φ = 694656.

The previous prime is 2104643. The next prime is 2104657. The reversal of 2104656 is 6564012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7690 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (137268).

2^2104656 is an apocalyptic number.

It is an amenable number.

2104656 is an abundant number, since it is smaller than the sum of its proper divisors (3386064).

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

2104656 is a wasteful number, since it uses less digits than its factorization.

2104656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2104656 is about 1450.7432577820. The cubic root of 2104656 is about 128.1524875389.

Adding to 2104656 its reverse (6564012), we get a palindrome (8668668).

The spelling of 2104656 in words is "two million, one hundred four thousand, six hundred fifty-six".