1388152 has 32 divisors (see below), whose sum is σ = 2818800. Its totient is φ = 638464.

The previous prime is 1388141. The next prime is 1388161. The reversal of 1388152 is 2518831.

It is a self number, because there is not a number n which added to its sum of digits gives 1388152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7938 + ... + 8110.

2^1388152 is an apocalyptic number.

It is an amenable number.

1388152 is an abundant number, since it is smaller than the sum of its proper divisors (1430648).

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

1388152 is a wasteful number, since it uses less digits than its factorization.

1388152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 251 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 1388152 is about 1178.1986250204. The cubic root of 1388152 is about 111.5524229482.

It can be divided in two parts, 1388 and 152, that added together give a triangular number (1540 = T₅₅).

The spelling of 1388152 in words is "one million, three hundred eighty-eight thousand, one hundred fifty-two".