216715430 has 48 divisors (see below), whose sum is σ = 414245664. Its totient is φ = 81607680.

The previous prime is 216715427. The next prime is 216715469. The reversal of 216715430 is 34517612.

216715430 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 = 216715393 and 216715402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375302 + ... + 375878.

It is an arithmetic number, because the mean of its divisors is an integer number (8630118).

Almost surely, 2^216715430 is an apocalyptic number.

216715430 is a deficient number, since it is larger than the sum of its proper divisors (197530234).

216715430 is a wasteful number, since it uses less digits than its factorization.

216715430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 216715430 is about 14721.2577587650. The cubic root of 216715430 is about 600.6617051607.

The spelling of 216715430 in words is "two hundred sixteen million, seven hundred fifteen thousand, four hundred thirty".