1387232 has 48 divisors (see below), whose sum is σ = 3411072. Its totient is φ = 539520.

The previous prime is 1387231. The next prime is 1387259. The reversal of 1387232 is 2327831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387231) 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, 2183 + ... + 2745.

It is an arithmetic number, because the mean of its divisors is an integer number (71064).

2^1387232 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 1387232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1705536).

1387232 is an abundant number, since it is smaller than the sum of its proper divisors (2023840).

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

1387232 is a wasteful number, since it uses less digits than its factorization.

1387232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 583 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 1387232 is about 1177.8081337807. The cubic root of 1387232 is about 111.5277736520.

The spelling of 1387232 in words is "one million, three hundred eighty-seven thousand, two hundred thirty-two".