216702412 has 24 divisors (see below), whose sum is σ = 397958400. Its totient is φ = 103053456.

The previous prime is 216702403. The next prime is 216702461. The reversal of 216702412 is 214207612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9889 + ... + 23047.

It is an arithmetic number, because the mean of its divisors is an integer number (16581600).

Almost surely, 2^216702412 is an apocalyptic number.

It is an amenable number.

216702412 is a deficient number, since it is larger than the sum of its proper divisors (181255988).

216702412 is a wasteful number, since it uses less digits than its factorization.

216702412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13365 (or 13363 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 216702412 is about 14720.8156024046. The cubic root of 216702412 is about 600.6496777589.

The spelling of 216702412 in words is "two hundred sixteen million, seven hundred two thousand, four hundred twelve".