219345604 has 6 divisors (see below), whose sum is σ = 383854814. Its totient is φ = 109672800.

The previous prime is 219345571. The next prime is 219345617. The reversal of 219345604 is 406543912.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 174187204 + 45158400 = 13198^2 + 6720^2 .

It is a super-2 number, since 2×219345604² = 96224987988249632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 219345604.

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 as a sum of consecutive naturals, namely, 27418197 + ... + 27418204.

Almost surely, 2^219345604 is an apocalyptic number.

It is an amenable number.

219345604 is a deficient number, since it is larger than the sum of its proper divisors (164509210).

219345604 is a wasteful number, since it uses less digits than its factorization.

219345604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54836405 (or 54836403 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 219345604 is about 14810.3208608051. The cubic root of 219345604 is about 603.0819239515.

The spelling of 219345604 in words is "two hundred nineteen million, three hundred forty-five thousand, six hundred four".