216883572 has 24 divisors (see below), whose sum is σ = 517831776. Its totient is φ = 70613088.

The previous prime is 216883523. The next prime is 216883573. The reversal of 216883572 is 275388612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216883573) 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, 209643 + ... + 210674.

It is an arithmetic number, because the mean of its divisors is an integer number (21576324).

Almost surely, 2^216883572 is an apocalyptic number.

It is an amenable number.

216883572 is an abundant number, since it is smaller than the sum of its proper divisors (300948204).

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

216883572 is a wasteful number, since it uses less digits than its factorization.

216883572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420367 (or 420365 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 216883572 is about 14726.9675086217. The cubic root of 216883572 is about 600.8170092105.

The spelling of 216883572 in words is "two hundred sixteen million, eight hundred eighty-three thousand, five hundred seventy-two".