219040380 has 72 divisors (see below), whose sum is σ = 715539552. Its totient is φ = 53917056.

The previous prime is 219040313. The next prime is 219040399. The reversal of 219040380 is 83040912.

219040380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44464 + ... + 49143.

Almost surely, 2^219040380 is an apocalyptic number.

219040380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219040380 is an abundant number, since it is smaller than the sum of its proper divisors (496499172).

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

219040380 is a wasteful number, since it uses less digits than its factorization.

219040380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93635 (or 93630 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 219040380 is about 14800.0128378323. The cubic root of 219040380 is about 602.8020603918.

The spelling of 219040380 in words is "two hundred nineteen million, forty thousand, three hundred eighty".