2001432215 has 16 divisors (see below), whose sum is σ = 2434759680. Its totient is φ = 1579163040.

The previous prime is 2001432211. The next prime is 2001432221. The reversal of 2001432215 is 5122341002.

It is not a de Polignac number, because 2001432215 - 2² = 2001432211 is a prime.

It is a super-2 number, since 2×2001432215² = 8011461822479612450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001432211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460382 + ... + 464708.

It is an arithmetic number, because the mean of its divisors is an integer number (152172480).

Almost surely, 2^2001432215 is an apocalyptic number.

2001432215 is a deficient number, since it is larger than the sum of its proper divisors (433327465).

2001432215 is a wasteful number, since it uses less digits than its factorization.

2001432215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2001432215 is about 44737.3693348190. The cubic root of 2001432215 is about 1260.2217244389.

Adding to 2001432215 its reverse (5122341002), we get a palindrome (7123773217).

The spelling of 2001432215 in words is "two billion, one million, four hundred thirty-two thousand, two hundred fifteen".