2000353681 has 4 divisors (see below), whose sum is σ = 2054417332. Its totient is φ = 1946290032.

The previous prime is 2000353643. The next prime is 2000353703. The reversal of 2000353681 is 1863530002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1368334081 + 632019600 = 36991^2 + 25140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000353681 - 2²¹ = 1998256529 is a prime.

It is a super-2 number, since 2×2000353681² = 8002829698180499522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000353601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27031770 + ... + 27031843.

It is an arithmetic number, because the mean of its divisors is an integer number (513604333).

Almost surely, 2^2000353681 is an apocalyptic number.

It is an amenable number.

2000353681 is a deficient number, since it is larger than the sum of its proper divisors (54063651).

2000353681 is an equidigital number, since it uses as much as digits as its factorization.

2000353681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54063650.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2000353681 is about 44725.3136489841. The cubic root of 2000353681 is about 1259.9953138736.

Adding to 2000353681 its reverse (1863530002), we get a palindrome (3863883683).

The spelling of 2000353681 in words is "two billion, three hundred fifty-three thousand, six hundred eighty-one".