402144003 has 12 divisors (see below), whose sum is σ = 581153248. Its totient is φ = 267967440.

The previous prime is 402143999. The next prime is 402144011. The reversal of 402144003 is 300441204.

It is not a de Polignac number, because 402144003 - 2² = 402143999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402144403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11526 + ... + 30612.

Almost surely, 2^402144003 is an apocalyptic number.

402144003 is a deficient number, since it is larger than the sum of its proper divisors (179009245).

402144003 is a wasteful number, since it uses less digits than its factorization.

402144003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21434 (or 21431 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402144003 is about 20053.5284426457. The cubic root of 402144003 is about 738.1203837812.

Adding to 402144003 its reverse (300441204), we get a palindrome (702585207).

The spelling of 402144003 in words is "four hundred two million, one hundred forty-four thousand, three".