216346052 has 24 divisors (see below), whose sum is σ = 409860696. Its totient is φ = 99330048.

The previous prime is 216346051. The next prime is 216346069. The reversal of 216346052 is 250643612.

216346052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6270016 + 210076036 = 2504^2 + 14494^2 .

It is a super-2 number, since 2×216346052² = 93611228431973408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216346051) 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, 743 + ... + 20814.

It is an arithmetic number, because the mean of its divisors is an integer number (17077529).

Almost surely, 2^216346052 is an apocalyptic number.

It is an amenable number.

216346052 is a deficient number, since it is larger than the sum of its proper divisors (193514644).

216346052 is a wasteful number, since it uses less digits than its factorization.

216346052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767 (or 21765 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 216346052 is about 14708.7066732599. The cubic root of 216346052 is about 600.3202475573.

Adding to 216346052 its reverse (250643612), we get a palindrome (466989664).

The spelling of 216346052 in words is "two hundred sixteen million, three hundred forty-six thousand, fifty-two".