1388316 has 12 divisors (see below), whose sum is σ = 3239432. Its totient is φ = 462768.

The previous prime is 1388297. The next prime is 1388323. The reversal of 1388316 is 6138831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57835 + ... + 57858.

2^1388316 is an apocalyptic number.

It is an amenable number.

1388316 is an abundant number, since it is smaller than the sum of its proper divisors (1851116).

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

1388316 is a wasteful number, since it uses less digits than its factorization.

1388316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115700 (or 115698 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1388316 is about 1178.2682207375. The cubic root of 1388316 is about 111.5568158094.

The spelling of 1388316 in words is "one million, three hundred eighty-eight thousand, three hundred sixteen".