2113002444 has 24 divisors (see below), whose sum is σ = 5634673408. Its totient is φ = 603714960.

The previous prime is 2113002421. The next prime is 2113002467. The reversal of 2113002444 is 4442003112.

It is an interprime number because it is at equal distance from previous prime (2113002421) and next prime (2113002467).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2113002444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12577312 + ... + 12577479.

Almost surely, 2^2113002444 is an apocalyptic number.

It is an amenable number.

2113002444 is an abundant number, since it is smaller than the sum of its proper divisors (3521670964).

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

2113002444 is a wasteful number, since it uses less digits than its factorization.

2113002444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25154805 (or 25154803 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2113002444 is about 45967.4063223062. The cubic root of 2113002444 is about 1283.2166906448.

Adding to 2113002444 its reverse (4442003112), we get a palindrome (6555005556).

The spelling of 2113002444 in words is "two billion, one hundred thirteen million, two thousand, four hundred forty-four".