2110155340 has 48 divisors (see below), whose sum is σ = 4555127808. Its totient is φ = 820661184.

The previous prime is 2110155331. The next prime is 2110155347. The reversal of 2110155340 is 435510112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2110155347) 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, 186279 + ... + 197281.

It is an arithmetic number, because the mean of its divisors is an integer number (94898496).

Almost surely, 2^2110155340 is an apocalyptic number.

2110155340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2110155340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2277563904).

2110155340 is an abundant number, since it is smaller than the sum of its proper divisors (2444972468).

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

2110155340 is a wasteful number, since it uses less digits than its factorization.

2110155340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278 (or 11276 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2110155340 is about 45936.4271575402. The cubic root of 2110155340 is about 1282.6400871921.

Adding to 2110155340 its reverse (435510112), we get a palindrome (2545665452).

The spelling of 2110155340 in words is "two billion, one hundred ten million, one hundred fifty-five thousand, three hundred forty".