216460033 has 4 divisors (see below), whose sum is σ = 221739588. Its totient is φ = 211180480.

The previous prime is 216460021. The next prime is 216460039. The reversal of 216460033 is 330064612.

216460033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3504384 + 212955649 = 1872^2 + 14593^2 .

It is a cyclic number.

It is not a de Polignac number, because 216460033 - 2⁵ = 216460001 is a prime.

It is a super-2 number, since 2×216460033² = 93709891772722178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216460039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2639716 + ... + 2639797.

It is an arithmetic number, because the mean of its divisors is an integer number (55434897).

Almost surely, 2^216460033 is an apocalyptic number.

It is an amenable number.

216460033 is a deficient number, since it is larger than the sum of its proper divisors (5279555).

216460033 is an equidigital number, since it uses as much as digits as its factorization.

216460033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279554.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 216460033 is about 14712.5807729304. The cubic root of 216460033 is about 600.4256544406.

The spelling of 216460033 in words is "two hundred sixteen million, four hundred sixty thousand, thirty-three".