1987232 has 48 divisors (see below), whose sum is σ = 4477032. Its totient is φ = 860160.

The previous prime is 1987231. The next prime is 1987241. The reversal of 1987232 is 2327891.

It can be written as a sum of positive squares in 4 ways, for example, as 1752976 + 234256 = 1324^2 + 484^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1987231) 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, 6932 + ... + 7212.

2^1987232 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 1987232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238516).

1987232 is an abundant number, since it is smaller than the sum of its proper divisors (2489800).

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

1987232 is a wasteful number, since it uses less digits than its factorization.

1987232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 313 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 1987232 is about 1409.6921649779. The cubic root of 1987232 is about 125.7234212173.

The spelling of 1987232 in words is "one million, nine hundred eighty-seven thousand, two hundred thirty-two".