19432001 has 8 divisors (see below), whose sum is σ = 20570880. Its totient is φ = 18324432.

The previous prime is 19431989. The next prime is 19432013. The reversal of 19432001 is 10023491.

It is an interprime number because it is at equal distance from previous prime (19431989) and next prime (19432013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19432001 - 2²² = 15237697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19432031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6545 + ... + 9038.

It is an arithmetic number, because the mean of its divisors is an integer number (2571360).

Almost surely, 2^19432001 is an apocalyptic number.

It is an amenable number.

19432001 is a deficient number, since it is larger than the sum of its proper divisors (1138879).

19432001 is a wasteful number, since it uses less digits than its factorization.

19432001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15655.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 19432001 is about 4408.1743386577. The cubic root of 19432001 is about 268.8474003548.

Adding to 19432001 its reverse (10023491), we get a palindrome (29455492).

The spelling of 19432001 in words is "nineteen million, four hundred thirty-two thousand, one".