401212232 has 16 divisors (see below), whose sum is σ = 752518140. Its totient is φ = 200540736.

The previous prime is 401212181. The next prime is 401212237. The reversal of 401212232 is 232212104.

It can be written as a sum of positive squares in 2 ways, for example, as 400240036 + 972196 = 20006^2 + 986^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 401212232.

It is not an unprimeable number, because it can be changed into a prime (401212237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26618 + ... + 38870.

Almost surely, 2^401212232 is an apocalyptic number.

It is an amenable number.

401212232 is a deficient number, since it is larger than the sum of its proper divisors (351305908).

401212232 is a wasteful number, since it uses less digits than its factorization.

401212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16352 (or 16348 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 401212232 is about 20030.2828736890. The cubic root of 401212232 is about 737.5498658995.

Adding to 401212232 its reverse (232212104), we get a palindrome (633424336).

The spelling of 401212232 in words is "four hundred one million, two hundred twelve thousand, two hundred thirty-two".