2240404 has 24 divisors (see below), whose sum is σ = 4233600. Its totient is φ = 1033920.

The previous prime is 2240389. The next prime is 2240431. The reversal of 2240404 is 4040422.

2240404 is a modest number, since divided by 404 gives 224 as remainder.

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, 2757 + ... + 3475.

It is an arithmetic number, because the mean of its divisors is an integer number (176400).

2^2240404 is an apocalyptic number.

It is an amenable number.

2240404 is a deficient number, since it is larger than the sum of its proper divisors (1993196).

2240404 is a wasteful number, since it uses less digits than its factorization.

2240404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2240404 is about 1496.7979155517. The cubic root of 2240404 is about 130.8505180703.

Adding to 2240404 its reverse (4040422), we get a palindrome (6280826).

It can be divided in two parts, 22 and 40404, that multiplied together give a palindrome (888888).

The spelling of 2240404 in words is "two million, two hundred forty thousand, four hundred four".