2001432433 has 32 divisors (see below), whose sum is σ = 2691101952. Its totient is φ = 1437523200.

The previous prime is 2001432427. The next prime is 2001432437. The reversal of 2001432433 is 3342341002.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001432433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001432437) 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, 1181335 + ... + 1183027.

It is an arithmetic number, because the mean of its divisors is an integer number (84096936).

Almost surely, 2^2001432433 is an apocalyptic number.

It is an amenable number.

2001432433 is a deficient number, since it is larger than the sum of its proper divisors (689669519).

2001432433 is a wasteful number, since it uses less digits than its factorization.

2001432433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2001432433 is about 44737.3717712608. The cubic root of 2001432433 is about 1260.2217701942.

Adding to 2001432433 its reverse (3342341002), we get a palindrome (5343773435).

It can be divided in two parts, 2001 and 432433, that added together give a palindrome (434434).

The spelling of 2001432433 in words is "two billion, one million, four hundred thirty-two thousand, four hundred thirty-three".