4021432 has 16 divisors (see below), whose sum is σ = 7592400. Its totient is φ = 1996800.

The previous prime is 4021427. The next prime is 4021439. The reversal of 4021432 is 2341204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (474525).

Almost surely, 2^4021432 is an apocalyptic number.

It is an amenable number.

4021432 is a deficient number, since it is larger than the sum of its proper divisors (3570968).

4021432 is a wasteful number, since it uses less digits than its factorization.

4021432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486 (or 3482 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4021432 is about 2005.3508421221. The cubic root of 4021432 is about 159.0231101780.

Adding to 4021432 its reverse (2341204), we get a palindrome (6362636).

The spelling of 4021432 in words is "four million, twenty-one thousand, four hundred thirty-two".