2030399 has 4 divisors (see below), whose sum is σ = 2320464. Its totient is φ = 1740336.

The previous prime is 2030393. The next prime is 2030411. The reversal of 2030399 is 9930302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9930302 = 2 ⋅4965151.

It is a cyclic number.

It is not a de Polignac number, because 2030399 - 2⁴ = 2030383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145022 + ... + 145035.

It is an arithmetic number, because the mean of its divisors is an integer number (580116).

2^2030399 is an apocalyptic number.

2030399 is a deficient number, since it is larger than the sum of its proper divisors (290065).

2030399 is an equidigital number, since it uses as much as digits as its factorization.

2030399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290064.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 2030399 is about 1424.9206995479. The cubic root of 2030399 is about 126.6272368808.

It can be divided in two parts, 20303 and 99, that added together give a palindrome (20402).

The spelling of 2030399 in words is "two million, thirty thousand, three hundred ninety-nine".