731075242 has 8 divisors (see below), whose sum is σ = 1161119556. Its totient is φ = 344035392.

The previous prime is 731075231. The next prime is 731075249. The reversal of 731075242 is 242570137.

731075242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 705380481 + 25694761 = 26559^2 + 5069^2 .

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

It is not an unprimeable number, because it can be changed into a prime (731075249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10751073 + ... + 10751140.

Almost surely, 2^731075242 is an apocalyptic number.

731075242 is a deficient number, since it is larger than the sum of its proper divisors (430044314).

731075242 is a wasteful number, since it uses less digits than its factorization.

731075242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21502232.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 731075242 is about 27038.4030963369. The cubic root of 731075242 is about 900.8531999644.

The spelling of 731075242 in words is "seven hundred thirty-one million, seventy-five thousand, two hundred forty-two".