2103666240 has 224 divisors, whose sum is σ = 7317394560. Its totient is φ = 508870656.

The previous prime is 2103666239. The next prime is 2103666247. The reversal of 2103666240 is 426663012.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2103666198 and 2103666207.

It is not an unprimeable number, because it can be changed into a prime (2103666247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734892 + ... + 737748.

It is an arithmetic number, because the mean of its divisors is an integer number (32666940).

Almost surely, 2^2103666240 is an apocalyptic number.

2103666240 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 2103666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3658697280).

2103666240 is an abundant number, since it is smaller than the sum of its proper divisors (5213728320).

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

2103666240 is a wasteful number, since it uses less digits than its factorization.

2103666240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 2103666240 is about 45865.7414635368. The cubic root of 2103666240 is about 1281.3239556280.

The spelling of 2103666240 in words is "two billion, one hundred three million, six hundred sixty-six thousand, two hundred forty".