216280036 has 24 divisors (see below), whose sum is σ = 433583360. Its totient is φ = 92472192.

The previous prime is 216280033. The next prime is 216280037. The reversal of 216280036 is 630082612.

216280036 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216280036² = 93554107944322592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 216279986 and 216280013.

It is not an unprimeable number, because it can be changed into a prime (216280033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3205 + ... + 21043.

Almost surely, 2^216280036 is an apocalyptic number.

It is an amenable number.

216280036 is an abundant number, since it is smaller than the sum of its proper divisors (217303324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216280036 is a wasteful number, since it uses less digits than its factorization.

216280036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18283 (or 18281 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 216280036 is about 14706.4623890316. The cubic root of 216280036 is about 600.2591806188.

The spelling of 216280036 in words is "two hundred sixteen million, two hundred eighty thousand, thirty-six".