218096380 has 24 divisors (see below), whose sum is σ = 464456160. Its totient is φ = 86009280.

The previous prime is 218096371. The next prime is 218096381. The reversal of 218096380 is 83690812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218096381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75375 + ... + 78214.

It is an arithmetic number, because the mean of its divisors is an integer number (19352340).

Almost surely, 2^218096380 is an apocalyptic number.

218096380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218096380 is an abundant number, since it is smaller than the sum of its proper divisors (246359780).

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

218096380 is a wasteful number, since it uses less digits than its factorization.

218096380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153669 (or 153667 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 218096380 is about 14768.0865382080. The cubic root of 218096380 is about 601.9348465008.

The spelling of 218096380 in words is "two hundred eighteen million, ninety-six thousand, three hundred eighty".