731346103242 has 72 divisors (see below), whose sum is σ = 1638294460452. Its totient is φ = 235781694720.

The previous prime is 731346103207. The next prime is 731346103247. The reversal of 731346103242 is 242301643137.

731346103242 is a `hidden beast` number, since 7 + 3 + 1 + 3 + 4 + 610 + 32 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 507882850281 + 223463252961 = 712659^2 + 472719^2 .

It is a junction number, because it is equal to n+sod(n) for n = 731346103197 and 731346103206.

It is not an unprimeable number, because it can be changed into a prime (731346103247) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32387868 + ... + 32410440.

Almost surely, 2^731346103242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731346103242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819147230226).

731346103242 is an abundant number, since it is smaller than the sum of its proper divisors (906948357210).

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

731346103242 is a wasteful number, since it uses less digits than its factorization.

731346103242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24516 (or 24482 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 731346103242 its reverse (242301643137), we get a palindrome (973647746379).

The spelling of 731346103242 in words is "seven hundred thirty-one billion, three hundred forty-six million, one hundred three thousand, two hundred forty-two".