2130344 has 8 divisors (see below), whose sum is σ = 3994410. Its totient is φ = 1065168.

The previous prime is 2130343. The next prime is 2130347. The reversal of 2130344 is 4430312.

It can be written as a sum of positive squares in only one way, i.e., 2067844 + 62500 = 1438^2 + 250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2130341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133139 + ... + 133154.

2^2130344 is an apocalyptic number.

It is an amenable number.

2130344 is a deficient number, since it is larger than the sum of its proper divisors (1864066).

2130344 is a wasteful number, since it uses less digits than its factorization.

2130344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266299 (or 266295 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2130344 is about 1459.5697996328. The cubic root of 2130344 is about 128.6717613072.

Adding to 2130344 its reverse (4430312), we get a palindrome (6560656).

Subtracting 2130344 from its reverse (4430312), we obtain a cube (2299968 = 132³).

The spelling of 2130344 in words is "two million, one hundred thirty thousand, three hundred forty-four".