216414436 has 24 divisors (see below), whose sum is σ = 436665600. Its totient is φ = 91926912.

The previous prime is 216414409. The next prime is 216414439. The reversal of 216414436 is 634414612.

216414436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216414398 and 216414407.

It is not an unprimeable number, because it can be changed into a prime (216414439) 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, 31036 + ... + 37363.

It is an arithmetic number, because the mean of its divisors is an integer number (18194400).

Almost surely, 2^216414436 is an apocalyptic number.

It is an amenable number.

216414436 is an abundant number, since it is smaller than the sum of its proper divisors (220251164).

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

216414436 is a wasteful number, since it uses less digits than its factorization.

216414436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68523 (or 68521 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 216414436 is about 14711.0310991446. The cubic root of 216414436 is about 600.3834918748.

The spelling of 216414436 in words is "two hundred sixteen million, four hundred fourteen thousand, four hundred thirty-six".