2034309 has 4 divisors (see below), whose sum is σ = 2712416. Its totient is φ = 1356204.

The previous prime is 2034283. The next prime is 2034317. The reversal of 2034309 is 9034302.

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 2034309 - 2⁷ = 2034181 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2034359) 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, 339049 + ... + 339054.

It is an arithmetic number, because the mean of its divisors is an integer number (678104).

2^2034309 is an apocalyptic number.

It is an amenable number.

2034309 is a deficient number, since it is larger than the sum of its proper divisors (678107).

2034309 is an equidigital number, since it uses as much as digits as its factorization.

2034309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678106.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 2034309 is about 1426.2920458307. The cubic root of 2034309 is about 126.7084680441.

The spelling of 2034309 in words is "two million, thirty-four thousand, three hundred nine".