1827432 has 48 divisors (see below), whose sum is σ = 5243940. Its totient is φ = 572928.

The previous prime is 1827431. The next prime is 1827479. The reversal of 1827432 is 2347281.

It can be written as a sum of positive squares in 2 ways, for example, as 1602756 + 224676 = 1266^2 + 474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1827396 and 1827405.

It is not an unprimeable number, because it can be changed into a prime (1827431) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 478 + ... + 1970.

2^1827432 is an apocalyptic number.

1827432 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 1827432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2621970).

1827432 is an abundant number, since it is smaller than the sum of its proper divisors (3416508).

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

1827432 is a wasteful number, since it uses less digits than its factorization.

1827432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1515 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1827432 is about 1351.8254325171. The cubic root of 1827432 is about 122.2588787509.

The spelling of 1827432 in words is "one million, eight hundred twenty-seven thousand, four hundred thirty-two".