2002531340 has 24 divisors (see below), whose sum is σ = 4388156640. Its totient is φ = 766185728.

The previous prime is 2002531339. The next prime is 2002531351. The reversal of 2002531340 is 431352002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2176205 + ... + 2177124.

It is an arithmetic number, because the mean of its divisors is an integer number (182839860).

Almost surely, 2^2002531340 is an apocalyptic number.

2002531340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002531340 is an abundant number, since it is smaller than the sum of its proper divisors (2385625300).

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

2002531340 is a wasteful number, since it uses less digits than its factorization.

2002531340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353361 (or 4353359 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2002531340 is about 44749.6518422211. The cubic root of 2002531340 is about 1260.4523738893.

Adding to 2002531340 its reverse (431352002), we get a palindrome (2433883342).

The spelling of 2002531340 in words is "two billion, two million, five hundred thirty-one thousand, three hundred forty".