219869412 has 48 divisors (see below), whose sum is σ = 587811840. Its totient is φ = 62659872.

The previous prime is 219869401. The next prime is 219869417. The reversal of 219869412 is 214968912.

219869412 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (219869417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32073 + ... + 38319.

It is an arithmetic number, because the mean of its divisors is an integer number (12246080).

Almost surely, 2^219869412 is an apocalyptic number.

It is an amenable number.

219869412 is an abundant number, since it is smaller than the sum of its proper divisors (367942428).

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

219869412 is a wasteful number, since it uses less digits than its factorization.

219869412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680 (or 6678 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 219869412 is about 14827.9942001607. The cubic root of 219869412 is about 603.5616053355.

The spelling of 219869412 in words is "two hundred nineteen million, eight hundred sixty-nine thousand, four hundred twelve".