16001432 has 16 divisors (see below), whose sum is σ = 30641760. Its totient is φ = 7830304.

The previous prime is 16001431. The next prime is 16001441. The reversal of 16001432 is 23410061.

It is a self number, because there is not a number n which added to its sum of digits gives 16001432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16001431) 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 3 ways as a sum of consecutive naturals, for example, 20903 + ... + 21654.

It is an arithmetic number, because the mean of its divisors is an integer number (1915110).

Almost surely, 2^16001432 is an apocalyptic number.

It is an amenable number.

16001432 is a deficient number, since it is larger than the sum of its proper divisors (14640328).

16001432 is a wasteful number, since it uses less digits than its factorization.

16001432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42610 (or 42606 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 16001432 is about 4000.1789959951. The cubic root of 16001432 is about 251.9917272836.

Adding to 16001432 its reverse (23410061), we get a palindrome (39411493).

The spelling of 16001432 in words is "sixteen million, one thousand, four hundred thirty-two".