242431398402 has 16 divisors (see below), whose sum is σ = 484868637120. Its totient is φ = 80809492752.

The previous prime is 242431398389. The next prime is 242431398431. The reversal of 242431398402 is 204893134242.

It is a super-2 number, since 2×242431398402² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 446883 + ... + 827385.

It is an arithmetic number, because the mean of its divisors is an integer number (30304289820).

Almost surely, 2^242431398402 is an apocalyptic number.

242431398402 is an abundant number, since it is smaller than the sum of its proper divisors (242437238718).

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

242431398402 is a wasteful number, since it uses less digits than its factorization.

242431398402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486697.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 242431398402 in words is "two hundred forty-two billion, four hundred thirty-one million, three hundred ninety-eight thousand, four hundred two".