219680680 has 32 divisors (see below), whose sum is σ = 497444040. Its totient is φ = 87310080.

The previous prime is 219680627. The next prime is 219680693. The reversal of 219680680 is 86086912.

219680680 is digitally balanced in base 3, 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 4 ways, for example, as 161951076 + 57729604 = 12726^2 + 7598^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a plaindrome in base 15.

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, 11211 + ... + 23770.

Almost surely, 2^219680680 is an apocalyptic number.

219680680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219680680 is an abundant number, since it is smaller than the sum of its proper divisors (277763360).

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

219680680 is a wasteful number, since it uses less digits than its factorization.

219680680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35149 (or 35145 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 219680680 is about 14821.6287903860. The cubic root of 219680680 is about 603.3888603766.

The spelling of 219680680 in words is "two hundred nineteen million, six hundred eighty thousand, six hundred eighty".