216091260 has 192 divisors, whose sum is σ = 838333440. Its totient is φ = 44893440.

The previous prime is 216091243. The next prime is 216091283. The reversal of 216091260 is 62190612.

216091260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38982 + ... + 44178.

It is an arithmetic number, because the mean of its divisors is an integer number (4366320).

Almost surely, 2^216091260 is an apocalyptic number.

216091260 is a gapful number since it is divisible by the number (20) 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 216091260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419166720).

216091260 is an abundant number, since it is smaller than the sum of its proper divisors (622242180).

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

216091260 is a wasteful number, since it uses less digits than its factorization.

216091260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233 (or 5225 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 216091260 is about 14700.0428570804. The cubic root of 216091260 is about 600.0844881024.

It can be divided in two parts, 2160 and 91260, that multiplied together give a square (197121600 = 14040²).

The spelling of 216091260 in words is "two hundred sixteen million, ninety-one thousand, two hundred sixty".