731206742 has 16 divisors (see below), whose sum is σ = 1259123712. Its totient is φ = 311967720.

The previous prime is 731206733. The next prime is 731206769. The reversal of 731206742 is 247602137.

731206742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 731206699 and 731206708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113984 + ... + 120227.

It is an arithmetic number, because the mean of its divisors is an integer number (78695232).

Almost surely, 2^731206742 is an apocalyptic number.

731206742 is a deficient number, since it is larger than the sum of its proper divisors (527916970).

731206742 is a wasteful number, since it uses less digits than its factorization.

731206742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234443.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 731206742 is about 27040.8347134477. The cubic root of 731206742 is about 900.9072094958.

Adding to 731206742 its reverse (247602137), we get a palindrome (978808879).

The spelling of 731206742 in words is "seven hundred thirty-one million, two hundred six thousand, seven hundred forty-two".