402000203 has 16 divisors (see below), whose sum is σ = 452293632. Its totient is φ = 354120000.

The previous prime is 402000199. The next prime is 402000239. The reversal of 402000203 is 302000204.

It is a cyclic number.

It is not a de Polignac number, because 402000203 - 2² = 402000199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is not an unprimeable number, because it can be changed into a prime (402000293) 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, 65150 + ... + 71052.

It is an arithmetic number, because the mean of its divisors is an integer number (28268352).

Almost surely, 2^402000203 is an apocalyptic number.

402000203 is a deficient number, since it is larger than the sum of its proper divisors (50293429).

402000203 is a wasteful number, since it uses less digits than its factorization.

402000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106.

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

The square root of 402000203 is about 20049.9427181227. The cubic root of 402000203 is about 738.0323934391.

Adding to 402000203 its reverse (302000204), we get a palindrome (704000407).

Subtracting from 402000203 its reverse (302000204), we obtain a palindrome (99999999).

The spelling of 402000203 in words is "four hundred two million, two hundred three", and thus it is an aban number.