2223040240 has 80 divisors (see below), whose sum is σ = 5358674880. Its totient is φ = 856647680.

The previous prime is 2223040231. The next prime is 2223040243. The reversal of 2223040240 is 420403222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223040243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500300 + ... + 1501780.

It is an arithmetic number, because the mean of its divisors is an integer number (66983436).

Almost surely, 2^2223040240 is an apocalyptic number.

2223040240 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 2223040240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679337440).

2223040240 is an abundant number, since it is smaller than the sum of its proper divisors (3135634640).

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

2223040240 is a wasteful number, since it uses less digits than its factorization.

2223040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170 (or 2164 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2223040240 is about 47149.1276695550. The cubic root of 2223040240 is about 1305.1159823127.

Adding to 2223040240 its reverse (420403222), we get a palindrome (2643443462).

The spelling of 2223040240 in words is "two billion, two hundred twenty-three million, forty thousand, two hundred forty".