1868432 has 20 divisors (see below), whose sum is σ = 3737856. Its totient is φ = 903840.

The previous prime is 1868423. The next prime is 1868443. The reversal of 1868432 is 2348681.

1868432 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388 + ... + 2379.

2^1868432 is an apocalyptic number.

It is an amenable number.

1868432 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1868432 is a wasteful number, since it uses less digits than its factorization.

1868432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806 (or 3800 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 1868432 is about 1366.9059953047. The cubic root of 1868432 is about 123.1664523263.

Subtracting 1868432 from its reverse (2348681), we obtain a square (480249 = 693²).

The spelling of 1868432 in words is "one million, eight hundred sixty-eight thousand, four hundred thirty-two".