402012003 has 8 divisors (see below), whose sum is σ = 536184400. Its totient is φ = 267923808.

The previous prime is 402012001. The next prime is 402012029. The reversal of 402012003 is 300210204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402012003 - 2¹ = 402012001 is a prime.

It is a super-2 number, since 2×402012003² = 323227301112144018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402012003.

It is not an unprimeable number, because it can be changed into a prime (402012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8908 + ... + 29721.

It is an arithmetic number, because the mean of its divisors is an integer number (67023050).

Almost surely, 2^402012003 is an apocalyptic number.

402012003 is a deficient number, since it is larger than the sum of its proper divisors (134172397).

402012003 is a wasteful number, since it uses less digits than its factorization.

402012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42101.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 402012003 is about 20050.2369811431. The cubic root of 402012003 is about 738.0396145773.

Adding to 402012003 its reverse (300210204), we get a palindrome (702222207).

The spelling of 402012003 in words is "four hundred two million, twelve thousand, three".