2349021 has 4 divisors (see below), whose sum is σ = 3132032. Its totient is φ = 1566012.

The previous prime is 2349001. The next prime is 2349023. The reversal of 2349021 is 1209432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2349021 - 2¹⁰ = 2347997 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2349023) 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, 391501 + ... + 391506.

It is an arithmetic number, because the mean of its divisors is an integer number (783008).

2^2349021 is an apocalyptic number.

It is an amenable number.

2349021 is a deficient number, since it is larger than the sum of its proper divisors (783011).

2349021 is an equidigital number, since it uses as much as digits as its factorization.

2349021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783010.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2349021 is about 1532.6516238206. The cubic root of 2349021 is about 132.9318247842.

The spelling of 2349021 in words is "two million, three hundred forty-nine thousand, twenty-one".