432001985 has 32 divisors (see below), whose sum is σ = 553692672. Its totient is φ = 322882560.

The previous prime is 432001981. The next prime is 432002017. The reversal of 432001985 is 589100234.

It is not a de Polignac number, because 432001985 - 2² = 432001981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432001981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1281737 + ... + 1282073.

It is an arithmetic number, because the mean of its divisors is an integer number (17302896).

Almost surely, 2^432001985 is an apocalyptic number.

It is an amenable number.

432001985 is a deficient number, since it is larger than the sum of its proper divisors (121690687).

432001985 is a wasteful number, since it uses less digits than its factorization.

432001985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 432001985 is about 20784.6574424502. The cubic root of 432001985 is about 755.9537877793.

The spelling of 432001985 in words is "four hundred thirty-two million, one thousand, nine hundred eighty-five".