1393704768 has 56 divisors (see below), whose sum is σ = 3710216608. Its totient is φ = 461707776.

The previous prime is 1393704751. The next prime is 1393704797. The reversal of 1393704768 is 8674073931.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9030 + ... + 53562.

It is an arithmetic number, because the mean of its divisors is an integer number (66253868).

Almost surely, 2^1393704768 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 1393704768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855108304).

1393704768 is an abundant number, since it is smaller than the sum of its proper divisors (2316511840).

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

1393704768 is a wasteful number, since it uses less digits than its factorization.

1393704768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44711 (or 44701 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 1393704768 is about 37332.3555110041. The cubic root of 1393704768 is about 1117.0096591077.

The spelling of 1393704768 in words is "one billion, three hundred ninety-three million, seven hundred four thousand, seven hundred sixty-eight".