1388352 has 56 divisors (see below), whose sum is σ = 4202176. Its totient is φ = 396288.

The previous prime is 1388327. The next prime is 1388353. The reversal of 1388352 is 2538831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828 + ... + 1860.

2^1388352 is an apocalyptic number.

1388352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1388352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2101088).

1388352 is an abundant number, since it is smaller than the sum of its proper divisors (2813824).

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

1388352 is a wasteful number, since it uses less digits than its factorization.

1388352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1045 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1388352 is about 1178.2834972960. The cubic root of 1388352 is about 111.5577800497.

The spelling of 1388352 in words is "one million, three hundred eighty-eight thousand, three hundred fifty-two".