1393838 has 8 divisors (see below), whose sum is σ = 2106432. Its totient is φ = 691696.

The previous prime is 1393837. The next prime is 1393871. The reversal of 1393838 is 8383931.

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 = 1393798 and 1393807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393831) 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, 2270 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (263304).

2^1393838 is an apocalyptic number.

1393838 is a deficient number, since it is larger than the sum of its proper divisors (712594).

1393838 is a wasteful number, since it uses less digits than its factorization.

1393838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226.

The product of its digits is 15552, while the sum is 35.

The square root of 1393838 is about 1180.6091647959. The cubic root of 1393838 is about 111.7045251698.

The spelling of 1393838 in words is "one million, three hundred ninety-three thousand, eight hundred thirty-eight".