216429594 has 16 divisors (see below), whose sum is σ = 433059168. Its totient is φ = 72109872.

The previous prime is 216429593. The next prime is 216429617. The reversal of 216429594 is 495924612.

216429594 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216429593) 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, 8289 + ... + 22395.

It is an arithmetic number, because the mean of its divisors is an integer number (27066198).

Almost surely, 2^216429594 is an apocalyptic number.

216429594 is an abundant number, since it is smaller than the sum of its proper divisors (216629574).

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

216429594 is a wasteful number, since it uses less digits than its factorization.

216429594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16669.

The product of its digits is 155520, while the sum is 42.

The square root of 216429594 is about 14711.5462817475. The cubic root of 216429594 is about 600.3975088086.

The spelling of 216429594 in words is "two hundred sixteen million, four hundred twenty-nine thousand, five hundred ninety-four".