219342285 has 12 divisors (see below), whose sum is σ = 380193372. Its totient is φ = 116982528.

The previous prime is 219342271. The next prime is 219342301. The reversal of 219342285 is 582243912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34327881 + 185014404 = 5859^2 + 13602^2 .

It is not a de Polignac number, because 219342285 - 2²⁶ = 152233421 is a prime.

It is a super-2 number, since 2×219342285² = 96222075978042450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2437092 + ... + 2437181.

It is an arithmetic number, because the mean of its divisors is an integer number (31682781).

Almost surely, 2^219342285 is an apocalyptic number.

It is an amenable number.

219342285 is a deficient number, since it is larger than the sum of its proper divisors (160851087).

219342285 is a wasteful number, since it uses less digits than its factorization.

219342285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874284 (or 4874281 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 219342285 is about 14810.2088101417. The cubic root of 219342285 is about 603.0788821172.

The spelling of 219342285 in words is "two hundred nineteen million, three hundred forty-two thousand, two hundred eighty-five".