1388026 has 8 divisors (see below), whose sum is σ = 2191680. Its totient is φ = 657468.

The previous prime is 1388021. The next prime is 1388029. The reversal of 1388026 is 6208831.

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 = 1387985 and 1388003.

It is not an unprimeable number, because it can be changed into a prime (1388021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18226 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (273960).

2^1388026 is an apocalyptic number.

1388026 is a deficient number, since it is larger than the sum of its proper divisors (803654).

1388026 is a wasteful number, since it uses less digits than its factorization.

1388026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36548.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1388026 is about 1178.1451523475. The cubic root of 1388026 is about 111.5490477101.

The spelling of 1388026 in words is "one million, three hundred eighty-eight thousand, twenty-six".