216254610 has 160 divisors (see below), whose sum is σ = 683508672. Its totient is φ = 48366720.

The previous prime is 216254587. The next prime is 216254617. The reversal of 216254610 is 16452612.

216254610 is a `hidden beast` number, since 21 + 6 + 25 + 4 + 610 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216254617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 114897 + ... + 116763.

Almost surely, 2^216254610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216254610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341754336).

216254610 is an abundant number, since it is smaller than the sum of its proper divisors (467254062).

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

216254610 is a wasteful number, since it uses less digits than its factorization.

216254610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 216254610 is about 14705.5979137198. The cubic root of 216254610 is about 600.2356574305.

The spelling of 216254610 in words is "two hundred sixteen million, two hundred fifty-four thousand, six hundred ten".