402431350242 has 8 divisors (see below), whose sum is σ = 804862700496. Its totient is φ = 134143783412.

The previous prime is 402431350183. The next prime is 402431350253. The reversal of 402431350242 is 242053134204.

It is a sphenic number, since it is the product of 3 distinct primes.

402431350242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33535945848 + ... + 33535945859.

It is an arithmetic number, because the mean of its divisors is an integer number (100607837562).

Almost surely, 2^402431350242 is an apocalyptic number.

402431350242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402431350242 is a wasteful number, since it uses less digits than its factorization.

402431350242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67071891712.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 402431350242 its reverse (242053134204), we get a palindrome (644484484446).

The spelling of 402431350242 in words is "four hundred two billion, four hundred thirty-one million, three hundred fifty thousand, two hundred forty-two".