240240404 has 6 divisors (see below), whose sum is σ = 420420714. Its totient is φ = 120120200.

The previous prime is 240240401. The next prime is 240240419. The reversal of 240240404 is 404042042.

It can be written as a sum of positive squares in only one way, i.e., 239940100 + 300304 = 15490^2 + 548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240240401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30030047 + ... + 30030054.

It is an arithmetic number, because the mean of its divisors is an integer number (70070119).

Almost surely, 2^240240404 is an apocalyptic number.

It is an amenable number.

240240404 is a deficient number, since it is larger than the sum of its proper divisors (180180310).

240240404 is a wasteful number, since it uses less digits than its factorization.

240240404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60060105 (or 60060103 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 240240404 is about 15499.6904485219. The cubic root of 240240404 is about 621.6539294813.

Adding to 240240404 its reverse (404042042), we get a palindrome (644282446).

The spelling of 240240404 in words is "two hundred forty million, two hundred forty thousand, four hundred four".