2106351340 has 24 divisors (see below), whose sum is σ = 4683534912. Its totient is φ = 792979200.

The previous prime is 2106351319. The next prime is 2106351347. The reversal of 2106351340 is 431536012.

It is not an unprimeable number, because it can be changed into a prime (2106351347) 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 7 ways as a sum of consecutive naturals, for example, 3097236 + ... + 3097915.

It is an arithmetic number, because the mean of its divisors is an integer number (195147288).

Almost surely, 2^2106351340 is an apocalyptic number.

2106351340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106351340 is an abundant number, since it is smaller than the sum of its proper divisors (2577183572).

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

2106351340 is a wasteful number, since it uses less digits than its factorization.

2106351340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195177 (or 6195175 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2106351340 is about 45895.0034317462. The cubic root of 2106351340 is about 1281.8688805032.

Adding to 2106351340 its reverse (431536012), we get a palindrome (2537887352).

The spelling of 2106351340 in words is "two billion, one hundred six million, three hundred fifty-one thousand, three hundred forty".