242040402646 has 12 divisors (see below), whose sum is σ = 422335804788. Its totient is φ = 103731601092.

The previous prime is 242040402601. The next prime is 242040402661. The reversal of 242040402646 is 646204040242.

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, 1234899916 + ... + 1234900111.

It is an arithmetic number, because the mean of its divisors is an integer number (35194650399).

Almost surely, 2^242040402646 is an apocalyptic number.

242040402646 is a deficient number, since it is larger than the sum of its proper divisors (180295402142).

242040402646 is a wasteful number, since it uses less digits than its factorization.

242040402646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469800043 (or 2469800036 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 242040402646 its reverse (646204040242), we get a palindrome (888244442888).

The spelling of 242040402646 in words is "two hundred forty-two billion, forty million, four hundred two thousand, six hundred forty-six".