216301652 has 48 divisors (see below), whose sum is σ = 441272832. Its totient is φ = 90862560.

The previous prime is 216301651. The next prime is 216301733. The reversal of 216301652 is 256103612.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216301651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378527 + ... + 379097.

It is an arithmetic number, because the mean of its divisors is an integer number (9193184).

Almost surely, 2^216301652 is an apocalyptic number.

It is an amenable number.

216301652 is an abundant number, since it is smaller than the sum of its proper divisors (224971180).

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

216301652 is a wasteful number, since it uses less digits than its factorization.

216301652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 216301652 is about 14707.1972856830. The cubic root of 216301652 is about 600.2791774871.

The spelling of 216301652 in words is "two hundred sixteen million, three hundred one thousand, six hundred fifty-two".