2129344 has 56 divisors (see below), whose sum is σ = 4978400. Its totient is φ = 903168.

The previous prime is 2129333. The next prime is 2129353. The reversal of 2129344 is 4439212.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21904 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (88900).

2^2129344 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 2129344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2489200).

2129344 is an abundant number, since it is smaller than the sum of its proper divisors (2849056).

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

2129344 is an frugal number, since it uses more digits than its factorization.

2129344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 106 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2129344 is about 1459.2271927291. The cubic root of 2129344 is about 128.6516249818.

The spelling of 2129344 in words is "two million, one hundred twenty-nine thousand, three hundred forty-four".