403006252 has 12 divisors (see below), whose sum is σ = 769375656. Its totient is φ = 183184640.

The previous prime is 403006229. The next prime is 403006259. The reversal of 403006252 is 252600304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (403006259) 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, 4579573 + ... + 4579660.

It is an arithmetic number, because the mean of its divisors is an integer number (64114638).

Almost surely, 2^403006252 is an apocalyptic number.

It is an amenable number.

403006252 is a deficient number, since it is larger than the sum of its proper divisors (366369404).

403006252 is a wasteful number, since it uses less digits than its factorization.

403006252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9159248 (or 9159246 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 403006252 is about 20075.0156164323. The cubic root of 403006252 is about 738.6475491967.

Adding to 403006252 its reverse (252600304), we get a palindrome (655606556).

The spelling of 403006252 in words is "four hundred three million, six thousand, two hundred fifty-two".