1222783936 has 56 divisors (see below), whose sum is σ = 2651613696. Its totient is φ = 554853120.

The previous prime is 1222783921. The next prime is 1222783949. The reversal of 1222783936 is 6393872221.

It is a junction number, because it is equal to n+sod(n) for n = 1222783892 and 1222783901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552945 + ... + 555151.

Almost surely, 2^1222783936 is an apocalyptic number.

1222783936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222783936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325806848).

1222783936 is an abundant number, since it is smaller than the sum of its proper divisors (1428829760).

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

1222783936 is a wasteful number, since it uses less digits than its factorization.

1222783936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3007 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 1222783936 is about 34968.3276122837. The cubic root of 1222783936 is about 1069.3418772971.

The spelling of 1222783936 in words is "one billion, two hundred twenty-two million, seven hundred eighty-three thousand, nine hundred thirty-six".