1388896 has 12 divisors (see below), whose sum is σ = 2734452. Its totient is φ = 694432.

The previous prime is 1388887. The next prime is 1388927. The reversal of 1388896 is 6988831.

It is a happy 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, 21670 + ... + 21733.

It is an arithmetic number, because the mean of its divisors is an integer number (227871).

2^1388896 is an apocalyptic number.

1388896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1388896 is a deficient number, since it is larger than the sum of its proper divisors (1345556).

1388896 is an equidigital number, since it uses as much as digits as its factorization.

1388896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43413 (or 43405 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 1388896 is about 1178.5143189627. The cubic root of 1388896 is about 111.5723487632.

The spelling of 1388896 in words is "one million, three hundred eighty-eight thousand, eight hundred ninety-six".