219005740 has 24 divisors (see below), whose sum is σ = 460570320. Its totient is φ = 87476928.

The previous prime is 219005729. The next prime is 219005779. The reversal of 219005740 is 47500912.

It is a happy number.

219005740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 219005699 and 219005708.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7191 + ... + 22129.

It is an arithmetic number, because the mean of its divisors is an integer number (19190430).

Almost surely, 2^219005740 is an apocalyptic number.

219005740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219005740 is an abundant number, since it is smaller than the sum of its proper divisors (241564580).

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

219005740 is a wasteful number, since it uses less digits than its factorization.

219005740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15681 (or 15679 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 219005740 is about 14798.8425223056. The cubic root of 219005740 is about 602.7702821352.

The spelling of 219005740 in words is "two hundred nineteen million, five thousand, seven hundred forty".