2002346581 has 16 divisors (see below), whose sum is σ = 2217608064. Its totient is φ = 1798308864.

The previous prime is 2002346579. The next prime is 2002346587. The reversal of 2002346581 is 1856432002.

It is a cyclic number.

It is not a de Polignac number, because 2002346581 - 2¹ = 2002346579 is a prime.

It is a super-2 number, since 2×2002346581² = 8018783660884779122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002346587) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 163390 + ... + 175216.

It is an arithmetic number, because the mean of its divisors is an integer number (138600504).

Almost surely, 2^2002346581 is an apocalyptic number.

It is an amenable number.

2002346581 is a deficient number, since it is larger than the sum of its proper divisors (215261483).

2002346581 is a wasteful number, since it uses less digits than its factorization.

2002346581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12300.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2002346581 is about 44747.5874321734. The cubic root of 2002346581 is about 1260.4136084398.

Adding to 2002346581 its reverse (1856432002), we get a palindrome (3858778583).

The spelling of 2002346581 in words is "two billion, two million, three hundred forty-six thousand, five hundred eighty-one".