1393948756 has 12 divisors (see below), whose sum is σ = 2567800480. Its totient is φ = 660291480.

The previous prime is 1393948739. The next prime is 1393948763. The reversal of 1393948756 is 6578493931.

It is a junction number, because it is equal to n+sod(n) for n = 1393948697 and 1393948706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9170640 + ... + 9170791.

Almost surely, 2^1393948756 is an apocalyptic number.

It is an amenable number.

1393948756 is a deficient number, since it is larger than the sum of its proper divisors (1173851724).

1393948756 is a wasteful number, since it uses less digits than its factorization.

1393948756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18341454 (or 18341452 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The square root of 1393948756 is about 37335.6231500159. The cubic root of 1393948756 is about 1117.0748381558.

The spelling of 1393948756 in words is "one billion, three hundred ninety-three million, nine hundred forty-eight thousand, seven hundred fifty-six".