1393866038 has 8 divisors (see below), whose sum is σ = 2094062760. Its totient is φ = 695845120.

The previous prime is 1393866031. The next prime is 1393866119. The reversal of 1393866038 is 8306683931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1393865983 and 1393866001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393866031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542348 + ... + 544911.

It is an arithmetic number, because the mean of its divisors is an integer number (261757845).

Almost surely, 2^1393866038 is an apocalyptic number.

1393866038 is a deficient number, since it is larger than the sum of its proper divisors (700196722).

1393866038 is a wasteful number, since it uses less digits than its factorization.

1393866038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087902.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 1393866038 is about 37334.5153711683. The cubic root of 1393866038 is about 1117.0527416897.

The spelling of 1393866038 in words is "one billion, three hundred ninety-three million, eight hundred sixty-six thousand, thirty-eight".