1283788704 has 288 divisors, whose sum is σ = 3973656960. Its totient is φ = 361912320.

The previous prime is 1283788703. The next prime is 1283788717. The reversal of 1283788704 is 4078873821.

It is a happy number.

It is a super-2 number, since 2×1283788704² = 3296226873035999232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1283788703) 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, 12463917 + ... + 12464019.

It is an arithmetic number, because the mean of its divisors is an integer number (13797420).

Almost surely, 2^1283788704 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 1283788704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1986828480).

1283788704 is an abundant number, since it is smaller than the sum of its proper divisors (2689868256).

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

1283788704 is a wasteful number, since it uses less digits than its factorization.

1283788704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 1283788704 is about 35829.9972648617. The cubic root of 1283788704 is about 1086.8372544284.

It can be divided in two parts, 1283 and 788704, that added together give a palindrome (789987).

The spelling of 1283788704 in words is "one billion, two hundred eighty-three million, seven hundred eighty-eight thousand, seven hundred four".