2001000442 has 16 divisors (see below), whose sum is σ = 3510061632. Its totient is φ = 837627840.

The previous prime is 2001000413. The next prime is 2001000457. The reversal of 2001000442 is 2440001002.

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, 1661359 + ... + 1662562.

It is an arithmetic number, because the mean of its divisors is an integer number (219378852).

Almost surely, 2^2001000442 is an apocalyptic number.

2001000442 is a deficient number, since it is larger than the sum of its proper divisors (1509061190).

2001000442 is a wasteful number, since it uses less digits than its factorization.

2001000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323973.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2001000442 is about 44732.5434331651. The cubic root of 2001000442 is about 1260.1310945317.

Adding to 2001000442 its reverse (2440001002), we get a palindrome (4441001444).

The spelling of 2001000442 in words is "two billion, one million, four hundred forty-two", and thus it is an aban number.