219368412 has 120 divisors (see below), whose sum is σ = 610246560. Its totient is φ = 68584320.

The previous prime is 219368399. The next prime is 219368417. The reversal of 219368412 is 214863912.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219368417) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 347337 + ... + 347967.

It is an arithmetic number, because the mean of its divisors is an integer number (5085388).

Almost surely, 2^219368412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219368412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305123280).

219368412 is an abundant number, since it is smaller than the sum of its proper divisors (390878148).

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

219368412 is a wasteful number, since it uses less digits than its factorization.

219368412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 702 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 219368412 is about 14811.0908443639. The cubic root of 219368412 is about 603.1028264536.

The spelling of 219368412 in words is "two hundred nineteen million, three hundred sixty-eight thousand, four hundred twelve".