2402003 has 4 divisors (see below), whose sum is σ = 2466960. Its totient is φ = 2337048.

The previous prime is 2401991. The next prime is 2402009. The reversal of 2402003 is 3002042.

2402003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3002042 = 2 ⋅1501021.

It is a cyclic number.

It is not a de Polignac number, because 2402003 - 2⁶ = 2401939 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 (2402009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32423 + ... + 32496.

It is an arithmetic number, because the mean of its divisors is an integer number (616740).

2^2402003 is an apocalyptic number.

2402003 is a deficient number, since it is larger than the sum of its proper divisors (64957).

2402003 is an equidigital number, since it uses as much as digits as its factorization.

2402003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64956.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 2402003 is about 1549.8396691271. The cubic root of 2402003 is about 133.9238261650.

Adding to 2402003 its reverse (3002042), we get a palindrome (5404045).

It can be divided in two parts, 240200 and 3, that multiplied together give a triangular number (720600 = T₁₂₀₀).

The spelling of 2402003 in words is "two million, four hundred two thousand, three".