216045434 has 16 divisors (see below), whose sum is σ = 355094496. Its totient is φ = 97767600.

The previous prime is 216045421. The next prime is 216045439. The reversal of 216045434 is 434540612.

216045434 is digitally balanced in base 3, 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 = 216045397 and 216045406.

It is not an unprimeable number, because it can be changed into a prime (216045439) 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, 16637 + ... + 26624.

It is an arithmetic number, because the mean of its divisors is an integer number (22193406).

Almost surely, 2^216045434 is an apocalyptic number.

216045434 is a deficient number, since it is larger than the sum of its proper divisors (139049062).

216045434 is a wasteful number, since it uses less digits than its factorization.

216045434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43501.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 216045434 is about 14698.4840714953. The cubic root of 216045434 is about 600.0420655693.

The spelling of 216045434 in words is "two hundred sixteen million, forty-five thousand, four hundred thirty-four".