2113044440 has 32 divisors (see below), whose sum is σ = 5120070480. Its totient is φ = 780200832.

The previous prime is 2113044389. The next prime is 2113044457. The reversal of 2113044440 is 444403112.

It is a happy number.

It is a congruent number.

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, 2031254 + ... + 2032293.

Almost surely, 2^2113044440 is an apocalyptic number.

2113044440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113044440 is an abundant number, since it is smaller than the sum of its proper divisors (3007026040).

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

2113044440 is a wasteful number, since it uses less digits than its factorization.

2113044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063571 (or 4063567 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2113044440 is about 45967.8631219682. The cubic root of 2113044440 is about 1283.2251919146.

Adding to 2113044440 its reverse (444403112), we get a palindrome (2557447552).

The spelling of 2113044440 in words is "two billion, one hundred thirteen million, forty-four thousand, four hundred forty".