2240004 has 48 divisors (see below), whose sum is σ = 5729472. Its totient is φ = 676992.

The previous prime is 2240003. The next prime is 2240023. The reversal of 2240004 is 4000422.

It is a Harshad number since it is a multiple of its sum of digits (12).

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12862 + ... + 13034.

It is an arithmetic number, because the mean of its divisors is an integer number (119364).

2^2240004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2240004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2864736).

2240004 is an abundant number, since it is smaller than the sum of its proper divisors (3489468).

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

2240004 is a wasteful number, since it uses less digits than its factorization.

2240004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2240004 is about 1496.6642910152. The cubic root of 2240004 is about 130.8427302900.

Adding to 2240004 its reverse (4000422), we get a palindrome (6240426).

It can be divided in two parts, 22 and 40004, that multiplied together give a palindrome (880088).

The spelling of 2240004 in words is "two million, two hundred forty thousand, four".