1394688 has 48 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 462848.

The previous prime is 1394683. The next prime is 1394699. The reversal of 1394688 is 8864931.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1394681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6031 + ... + 6257.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2^1394688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867320).

1394688 is an abundant number, since it is smaller than the sum of its proper divisors (2339952).

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

1394688 is an equidigital number, since it uses as much as digits as its factorization.

1394688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 232 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 1394688 is about 1180.9690935837. The cubic root of 1394688 is about 111.7272273662.

The spelling of 1394688 in words is "one million, three hundred ninety-four thousand, six hundred eighty-eight".