240404841 has 40 divisors (see below), whose sum is σ = 368367560. Its totient is φ = 156204288.

The previous prime is 240404839. The next prime is 240404861. The reversal of 240404841 is 148404042.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65610000 + 174794841 = 8100^2 + 13221^2 .

It is not a de Polignac number, because 240404841 - 2¹ = 240404839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240404861) 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 in 39 ways as a sum of consecutive naturals, for example, 644331 + ... + 644703.

It is an arithmetic number, because the mean of its divisors is an integer number (9209189).

Almost surely, 2^240404841 is an apocalyptic number.

It is an amenable number.

240404841 is a deficient number, since it is larger than the sum of its proper divisors (127962719).

240404841 is a wasteful number, since it uses less digits than its factorization.

240404841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 240404841 is about 15504.9940664290. The cubic root of 240404841 is about 621.7957313203.

Adding to 240404841 its reverse (148404042), we get a palindrome (388808883).

The spelling of 240404841 in words is "two hundred forty million, four hundred four thousand, eight hundred forty-one".