216426033 has 16 divisors (see below), whose sum is σ = 320967360. Its totient is φ = 144132768.

The previous prime is 216425981. The next prime is 216426047. The reversal of 216426033 is 330624612.

216426033 is a `hidden beast` number, since 2 + 16 + 42 + 603 + 3 = 666.

216426033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216426033 - 2⁸ = 216425777 is a prime.

It is a super-3 number, since 3×216426033³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 216425988 and 216426006.

It is not an unprimeable number, because it can be changed into a prime (216426233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25966 + ... + 33272.

It is an arithmetic number, because the mean of its divisors is an integer number (20060460).

Almost surely, 2^216426033 is an apocalyptic number.

It is an amenable number.

216426033 is a deficient number, since it is larger than the sum of its proper divisors (104541327).

216426033 is a wasteful number, since it uses less digits than its factorization.

216426033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8413 (or 8407 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 216426033 is about 14711.4252538631. The cubic root of 216426033 is about 600.3942159329.

The spelling of 216426033 in words is "two hundred sixteen million, four hundred twenty-six thousand, thirty-three".