216434296 has 16 divisors (see below), whose sum is σ = 437031000. Its totient is φ = 99892704.

The previous prime is 216434287. The next prime is 216434297. The reversal of 216434296 is 692434612.

It is a happy number.

216434296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216434297) 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, 1040446 + ... + 1040653.

Almost surely, 2^216434296 is an apocalyptic number.

216434296 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216434296 is an abundant number, since it is smaller than the sum of its proper divisors (220596704).

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

216434296 is a wasteful number, since it uses less digits than its factorization.

216434296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081118 (or 2081114 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 216434296 is about 14711.7060873306. The cubic root of 216434296 is about 600.4018567178.

The spelling of 216434296 in words is "two hundred sixteen million, four hundred thirty-four thousand, two hundred ninety-six".