216432052 has 24 divisors (see below), whose sum is σ = 384019776. Its totient is φ = 106723008.

The previous prime is 216432031. The next prime is 216432061. The reversal of 216432052 is 250234612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88113 + ... + 90535.

It is an arithmetic number, because the mean of its divisors is an integer number (16000824).

Almost surely, 2^216432052 is an apocalyptic number.

It is an amenable number.

216432052 is a deficient number, since it is larger than the sum of its proper divisors (167587724).

216432052 is a wasteful number, since it uses less digits than its factorization.

216432052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 216432052 is about 14711.6298213352. The cubic root of 216432052 is about 600.3997817133.

Adding to 216432052 its reverse (250234612), we get a palindrome (466666664).

The spelling of 216432052 in words is "two hundred sixteen million, four hundred thirty-two thousand, fifty-two".