2113202440 has 16 divisors (see below), whose sum is σ = 4754705580. Its totient is φ = 845280960.

The previous prime is 2113202437. The next prime is 2113202453. The reversal of 2113202440 is 442023112.

It can be written as a sum of positive squares in 2 ways, for example, as 2076260356 + 36942084 = 45566^2 + 6078^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26414991 + ... + 26415070.

Almost surely, 2^2113202440 is an apocalyptic number.

2113202440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113202440 is an abundant number, since it is smaller than the sum of its proper divisors (2641503140).

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

2113202440 is a wasteful number, since it uses less digits than its factorization.

2113202440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830072 (or 52830068 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2113202440 is about 45969.5816818035. The cubic root of 2113202440 is about 1283.2571749187.

Adding to 2113202440 its reverse (442023112), we get a palindrome (2555225552).

The spelling of 2113202440 in words is "two billion, one hundred thirteen million, two hundred two thousand, four hundred forty".