1219343796 has 72 divisors (see below), whose sum is σ = 3419488800. Its totient is φ = 363228480.

The previous prime is 1219343779. The next prime is 1219343803. The reversal of 1219343796 is 6973439121.

1219343796 is a `hidden beast` number, since 1 + 219 + 343 + 7 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2731 + ... + 49458.

It is an arithmetic number, because the mean of its divisors is an integer number (47492900).

Almost surely, 2^1219343796 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 1219343796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709744400).

1219343796 is an abundant number, since it is smaller than the sum of its proper divisors (2200145004).

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

1219343796 is a wasteful number, since it uses less digits than its factorization.

1219343796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52269 (or 52264 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1219343796 is about 34919.1035967420. The cubic root of 1219343796 is about 1068.3381183362.

The spelling of 1219343796 in words is "one billion, two hundred nineteen million, three hundred forty-three thousand, seven hundred ninety-six".