1388768 has 12 divisors (see below), whose sum is σ = 2734200. Its totient is φ = 694368.

The previous prime is 1388743. The next prime is 1388773. The reversal of 1388768 is 8678831.

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, 21668 + ... + 21731.

It is an arithmetic number, because the mean of its divisors is an integer number (227850).

2^1388768 is an apocalyptic number.

It is an amenable number.

1388768 is a deficient number, since it is larger than the sum of its proper divisors (1345432).

1388768 is an equidigital number, since it uses as much as digits as its factorization.

1388768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43409 (or 43401 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 1388768 is about 1178.4600120496. The cubic root of 1388768 is about 111.5689211729.

The spelling of 1388768 in words is "one million, three hundred eighty-eight thousand, seven hundred sixty-eight".