403243216 has 20 divisors (see below), whose sum is σ = 790699392. Its totient is φ = 199191776.

The previous prime is 403243201. The next prime is 403243219. The reversal of 403243216 is 612342304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403243219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150496 + ... + 153151.

Almost surely, 2^403243216 is an apocalyptic number.

It is an amenable number.

403243216 is a deficient number, since it is larger than the sum of its proper divisors (387456176).

403243216 is a wasteful number, since it uses less digits than its factorization.

403243216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303738 (or 303732 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 403243216 is about 20080.9167121424. The cubic root of 403243216 is about 738.7922935047.

The spelling of 403243216 in words is "four hundred three million, two hundred forty-three thousand, two hundred sixteen".