2002011040 has 24 divisors (see below), whose sum is σ = 4729751460. Its totient is φ = 800804352.

The previous prime is 2002011007. The next prime is 2002011041. The reversal of 2002011040 is 401102002.

It can be written as a sum of positive squares in 2 ways, for example, as 1995230224 + 6780816 = 44668^2 + 2604^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2002011041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6256125 + ... + 6256444.

Almost surely, 2^2002011040 is an apocalyptic number.

2002011040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002011040 is an abundant number, since it is smaller than the sum of its proper divisors (2727740420).

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

2002011040 is a wasteful number, since it uses less digits than its factorization.

2002011040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12512584 (or 12512576 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2002011040 is about 44743.8380115072. The cubic root of 2002011040 is about 1260.3432003709.

Adding to 2002011040 its reverse (401102002), we get a palindrome (2403113042).

The spelling of 2002011040 in words is "two billion, two million, eleven thousand, forty".