2240000 has 100 divisors (see below), whose sum is σ = 6391704. Its totient is φ = 768000.

The previous prime is 2239997. The next prime is 2240003. The reversal of 2240000 is 422.

It is an interprime number because it is at equal distance from previous prime (2239997) and next prime (2240003).

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2240000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 319997 + ... + 320003.

2^2240000 is an apocalyptic number.

2240000 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 2240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3195852).

2240000 is an abundant number, since it is smaller than the sum of its proper divisors (4151704).

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

2240000 is an frugal number, since it uses more digits than its factorization.

2240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 2240000 is about 1496.6629547096. The cubic root of 2240000 is about 130.8426524075.

Adding to 2240000 its reverse (422), we get a palindrome (2240422).

The spelling of 2240000 in words is "two million, two hundred forty thousand".