1388994 has 16 divisors (see below), whose sum is σ = 2795520. Its totient is φ = 460080.

The previous prime is 1388969. The next prime is 1389001. The reversal of 1388994 is 4998831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 1725.

It is an arithmetic number, because the mean of its divisors is an integer number (174720).

2^1388994 is an apocalyptic number.

1388994 is an abundant number, since it is smaller than the sum of its proper divisors (1406526).

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

1388994 is a wasteful number, since it uses less digits than its factorization.

1388994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its digits is 62208, while the sum is 42.

The square root of 1388994 is about 1178.5558960015. Note that the first 3 decimals coincide. The cubic root of 1388994 is about 111.5749728697.

The spelling of 1388994 in words is "one million, three hundred eighty-eight thousand, nine hundred ninety-four".