731042 has 16 divisors (see below), whose sum is σ = 1220352. Its totient is φ = 326160.

The previous prime is 731041. The next prime is 731047. The reversal of 731042 is 240137.

It is a happy number.

731042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 731042.

It is not an unprimeable number, because it can be changed into a prime (731041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353 + ... + 1259.

It is an arithmetic number, because the mean of its divisors is an integer number (76272).

2⁷³¹⁰⁴² is an apocalyptic number.

731042 is a deficient number, since it is larger than the sum of its proper divisors (489310).

731042 is a wasteful number, since it uses less digits than its factorization.

731042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 731042 is about 855.0099414627. The cubic root of 731042 is about 90.0839545822.

Subtracting from 731042 its sum of digits (17), we obtain a square (731025 = 855²).

Adding to 731042 its reverse (240137), we get a palindrome (971179).

The spelling of 731042 in words is "seven hundred thirty-one thousand, forty-two".