216413052 has 12 divisors (see below), whose sum is σ = 504963816. Its totient is φ = 72137680.

The previous prime is 216413027. The next prime is 216413053. The reversal of 216413052 is 250314612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216413053) 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, 9017199 + ... + 9017222.

It is an arithmetic number, because the mean of its divisors is an integer number (42080318).

Almost surely, 2^216413052 is an apocalyptic number.

It is an amenable number.

216413052 is an abundant number, since it is smaller than the sum of its proper divisors (288550764).

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

216413052 is a wasteful number, since it uses less digits than its factorization.

216413052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18034428 (or 18034426 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 216413052 is about 14710.9840595386. The cubic root of 216413052 is about 600.3822120271.

Adding to 216413052 its reverse (250314612), we get a palindrome (466727664).

The spelling of 216413052 in words is "two hundred sixteen million, four hundred thirteen thousand, fifty-two".