683944220 has 12 divisors (see below), whose sum is σ = 1436282904. Its totient is φ = 273577680.

The previous prime is 683944193. The next prime is 683944229. The reversal of 683944220 is 22449386.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683944229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17098586 + ... + 17098625.

It is an arithmetic number, because the mean of its divisors is an integer number (119690242).

Almost surely, 2^683944220 is an apocalyptic number.

It is an amenable number.

683944220 is an abundant number, since it is smaller than the sum of its proper divisors (752338684).

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

683944220 is a wasteful number, since it uses less digits than its factorization.

683944220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34197220 (or 34197218 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 683944220 is about 26152.3272386990. The cubic root of 683944220 is about 881.0628600493.

The spelling of 683944220 in words is "six hundred eighty-three million, nine hundred forty-four thousand, two hundred twenty".