403280216 has 16 divisors (see below), whose sum is σ = 763947240. Its totient is φ = 199560960.

The previous prime is 403280203. The next prime is 403280243. The reversal of 403280216 is 612082304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259070 + ... + 260621.

Almost surely, 2^403280216 is an apocalyptic number.

It is an amenable number.

403280216 is a deficient number, since it is larger than the sum of its proper divisors (360667024).

403280216 is a wasteful number, since it uses less digits than its factorization.

403280216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519794 (or 519790 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 403280216 is about 20081.8379636925. The cubic root of 403280216 is about 738.8148890316.

It can be divided in two parts, 4032 and 80216, that added together give a palindrome (84248).

The spelling of 403280216 in words is "four hundred three million, two hundred eighty thousand, two hundred sixteen".