2002022040 has 32 divisors (see below), whose sum is σ = 6006066480. Its totient is φ = 533872512.

The previous prime is 2002022027. The next prime is 2002022063. The reversal of 2002022040 is 402202002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8341639 + ... + 8341878.

Almost surely, 2^2002022040 is an apocalyptic number.

2002022040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002022040 is an abundant number, since it is smaller than the sum of its proper divisors (4004044440).

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

2002022040 is a wasteful number, since it uses less digits than its factorization.

2002022040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16683531 (or 16683527 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2002022040 is about 44743.9609332924. The cubic root of 2002022040 is about 1260.3455086748.

Adding to 2002022040 its reverse (402202002), we get a palindrome (2404224042).

The spelling of 2002022040 in words is "two billion, two million, twenty-two thousand, forty".