1393696356 has 72 divisors (see below), whose sum is σ = 3539126304. Its totient is φ = 426666240.

The previous prime is 1393696277. The next prime is 1393696387. The reversal of 1393696356 is 6536963931.

It is a junction number, because it is equal to n+sod(n) for n = 1393696299 and 1393696308.

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 23 ways as a sum of consecutive naturals, for example, 426280 + ... + 429536.

It is an arithmetic number, because the mean of its divisors is an integer number (49154532).

Almost surely, 2^1393696356 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 1393696356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769563152).

1393696356 is an abundant number, since it is smaller than the sum of its proper divisors (2145429948).

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

1393696356 is a wasteful number, since it uses less digits than its factorization.

1393696356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3486 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 51.

The square root of 1393696356 is about 37332.2428471690. The cubic root of 1393696356 is about 1117.0074117872.

The spelling of 1393696356 in words is "one billion, three hundred ninety-three million, six hundred ninety-six thousand, three hundred fifty-six".