1223936208 has 240 divisors, whose sum is σ = 3885822720. Its totient is φ = 356428800.

The previous prime is 1223936201. The next prime is 1223936221. The reversal of 1223936208 is 8026393221.

1223936208 is a `hidden beast` number, since 1 + 2 + 23 + 9 + 3 + 620 + 8 = 666.

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 (1223936201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5120953 + ... + 5121191.

It is an arithmetic number, because the mean of its divisors is an integer number (16190928).

Almost surely, 2^1223936208 is an apocalyptic number.

1223936208 is a gapful number since it is divisible by the number (18) 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 1223936208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942911360).

1223936208 is an abundant number, since it is smaller than the sum of its proper divisors (2661886512).

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

1223936208 is a wasteful number, since it uses less digits than its factorization.

1223936208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1223936208 is about 34984.7996707141. The cubic root of 1223936208 is about 1069.6776645745.

The spelling of 1223936208 in words is "one billion, two hundred twenty-three million, nine hundred thirty-six thousand, two hundred eight".