1388038 has 4 divisors (see below), whose sum is σ = 2082060. Its totient is φ = 694018.

The previous prime is 1388029. The next prime is 1388041. The reversal of 1388038 is 8308831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8308831 = 37 ⋅224563.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347008 + ... + 347011.

It is an arithmetic number, because the mean of its divisors is an integer number (520515).

2^1388038 is an apocalyptic number.

1388038 is a deficient number, since it is larger than the sum of its proper divisors (694022).

1388038 is an equidigital number, since it uses as much as digits as its factorization.

1388038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694021.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1388038 is about 1178.1502450876. The cubic root of 1388038 is about 111.5493691702.

The spelling of 1388038 in words is "one million, three hundred eighty-eight thousand, thirty-eight".