242688442490 has 32 divisors (see below), whose sum is σ = 470494918656. Its totient is φ = 89598000960.

The previous prime is 242688442483. The next prime is 242688442517. The reversal of 242688442490 is 94244886242.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1114685 + ... + 1314495.

It is an arithmetic number, because the mean of its divisors is an integer number (14702966208).

Almost surely, 2^242688442490 is an apocalyptic number.

242688442490 is a deficient number, since it is larger than the sum of its proper divisors (227806476166).

242688442490 is a wasteful number, since it uses less digits than its factorization.

242688442490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209174.

The product of its (nonzero) digits is 7077888, while the sum is 53.

The spelling of 242688442490 in words is "two hundred forty-two billion, six hundred eighty-eight million, four hundred forty-two thousand, four hundred ninety".