402002003 has 16 divisors (see below), whose sum is σ = 447288576. Its totient is φ = 358888320.

The previous prime is 402001997. The next prime is 402002011. The reversal of 402002003 is 300200204.

It is a cyclic number.

It is not a de Polignac number, because 402002003 - 2²⁴ = 385224787 is a prime.

It is a super-2 number, since 2×402002003² = 323211220832024018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402002023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80798 + ... + 85628.

It is an arithmetic number, because the mean of its divisors is an integer number (27955536).

Almost surely, 2^402002003 is an apocalyptic number.

402002003 is a deficient number, since it is larger than the sum of its proper divisors (45286573).

402002003 is a wasteful number, since it uses less digits than its factorization.

402002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054.

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

The square root of 402002003 is about 20049.9876059812. The cubic root of 402002003 is about 738.0334949778.

Adding to 402002003 its reverse (300200204), we get a palindrome (702202207).

The spelling of 402002003 in words is "four hundred two million, two thousand, three".