2123304 has 16 divisors (see below), whose sum is σ = 5308320. Its totient is φ = 707760.

The previous prime is 2123281. The next prime is 2123309. The reversal of 2123304 is 4033212.

It is not an unprimeable number, because it can be changed into a prime (2123309) 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 3 ways as a sum of consecutive naturals, for example, 44212 + ... + 44259.

It is an arithmetic number, because the mean of its divisors is an integer number (331770).

2^2123304 is an apocalyptic number.

2123304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2123304 is an abundant number, since it is smaller than the sum of its proper divisors (3185016).

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

2123304 is a wasteful number, since it uses less digits than its factorization.

2123304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88480 (or 88476 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2123304 is about 1457.1561343933. The cubic root of 2123304 is about 128.5298673426.

Adding to 2123304 its reverse (4033212), we get a palindrome (6156516).

The spelling of 2123304 in words is "two million, one hundred twenty-three thousand, three hundred four".