216733370 has 48 divisors (see below), whose sum is σ = 473568768. Its totient is φ = 71074080.

The previous prime is 216733331. The next prime is 216733381. The reversal of 216733370 is 73337612.

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, 1655 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (9866016).

Almost surely, 2^216733370 is an apocalyptic number.

216733370 is an abundant number, since it is smaller than the sum of its proper divisors (256835398).

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

216733370 is a wasteful number, since it uses less digits than its factorization.

216733370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19275 (or 19268 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 216733370 is about 14721.8670690915. The cubic root of 216733370 is about 600.6782792362.

The spelling of 216733370 in words is "two hundred sixteen million, seven hundred thirty-three thousand, three hundred seventy".