2003429 has 4 divisors (see below), whose sum is σ = 2006880. Its totient is φ = 1999980.

The previous prime is 2003411. The next prime is 2003447. The reversal of 2003429 is 9243002.

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 an interprime number because it is at equal distance from previous prime (2003411) and next prime (2003447).

It is a cyclic number.

It is not a de Polignac number, because 2003429 - 2²⁰ = 954853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003459) 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, 617 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (501720).

2^2003429 is an apocalyptic number.

It is an amenable number.

2003429 is a deficient number, since it is larger than the sum of its proper divisors (3451).

2003429 is an equidigital number, since it uses as much as digits as its factorization.

2003429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2003429 is about 1415.4253777575. The cubic root of 2003429 is about 126.0640683661.

The spelling of 2003429 in words is "two million, three thousand, four hundred twenty-nine".