240320404 has 6 divisors (see below), whose sum is σ = 420560714. Its totient is φ = 120160200.

The previous prime is 240320387. The next prime is 240320407. The reversal of 240320404 is 404023042.

It can be written as a sum of positive squares in only one way, i.e., 228070404 + 12250000 = 15102^2 + 3500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240320407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30040047 + ... + 30040054.

Almost surely, 2^240320404 is an apocalyptic number.

It is an amenable number.

240320404 is a deficient number, since it is larger than the sum of its proper divisors (180240310).

240320404 is a wasteful number, since it uses less digits than its factorization.

240320404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60080105 (or 60080103 counting only the distinct ones).

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

The square root of 240320404 is about 15502.2709304153. The cubic root of 240320404 is about 621.7229253625.

Adding to 240320404 its reverse (404023042), we get a palindrome (644343446).

The spelling of 240320404 in words is "two hundred forty million, three hundred twenty thousand, four hundred four".