2001000396 has 24 divisors (see below), whose sum is σ = 4678297344. Its totient is φ = 665672080.

The previous prime is 2001000389. The next prime is 2001000413. The reversal of 2001000396 is 6930001002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159720 + ... + 171791.

It is an arithmetic number, because the mean of its divisors is an integer number (194929056).

Almost surely, 2^2001000396 is an apocalyptic number.

It is an amenable number.

2001000396 is an abundant number, since it is smaller than the sum of its proper divisors (2677296948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001000396 is a wasteful number, since it uses less digits than its factorization.

2001000396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332021 (or 332019 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 2001000396 is about 44732.5429189980. The cubic root of 2001000396 is about 1260.1310848755.

Adding to 2001000396 its reverse (6930001002), we get a palindrome (8931001398).

The spelling of 2001000396 in words is "two billion, one million, three hundred ninety-six", and thus it is an aban number.