216201024 has 126 divisors (see below), whose sum is σ = 671339526. Its totient is φ = 66493440.

The previous prime is 216201023. The next prime is 216201059. The reversal of 216201024 is 420102612.

216201024 is a `hidden beast` number, since 21 + 620 + 1 + 0 + 24 = 666.

216201024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1871424 + 214329600 = 1368^2 + 14640^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 216200988 and 216201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216201023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96234 + ... + 98454.

Almost surely, 2^216201024 is an apocalyptic number.

216201024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216201024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335669763).

216201024 is an abundant number, since it is smaller than the sum of its proper divisors (455138502).

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

216201024 is a wasteful number, since it uses less digits than its factorization.

216201024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 216201024 is about 14703.7758415993. The cubic root of 216201024 is about 600.1860756205.

Adding to 216201024 its reverse (420102612), we get a palindrome (636303636).

The spelling of 216201024 in words is "two hundred sixteen million, two hundred one thousand, twenty-four".