240040000404 has 18 divisors (see below), whose sum is σ = 606767778890. Its totient is φ = 80013333456.

The previous prime is 240040000393. The next prime is 240040000433. The reversal of 240040000404 is 404000040042.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 126841397904 + 113198602500 = 356148^2 + 336450^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3333888859 + ... + 3333888930.

Almost surely, 2^240040000404 is an apocalyptic number.

It is an amenable number.

240040000404 is an abundant number, since it is smaller than the sum of its proper divisors (366727778486).

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

240040000404 is a wasteful number, since it uses less digits than its factorization.

240040000404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667777799 (or 6667777794 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 240040000404 its reverse (404000040042), we get a palindrome (644040040446).

The spelling of 240040000404 in words is "two hundred forty billion, forty million, four hundred four", and thus it is an aban number.