7311042 has 12 divisors (see below), whose sum is σ = 15840630. Its totient is φ = 2437008.

The previous prime is 7311041. The next prime is 7311047. The reversal of 7311042 is 2401137.

It can be written as a sum of positive squares in only one way, i.e., 3884841 + 3426201 = 1971^2 + 1851^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 406169 = 7311042 / (7 + 3 + 1 + 1 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (7311041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203067 + ... + 203102.

Almost surely, 2^7311042 is an apocalyptic number.

7311042 is an abundant number, since it is smaller than the sum of its proper divisors (8529588).

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

7311042 is a wasteful number, since it uses less digits than its factorization.

7311042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406177 (or 406174 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 7311042 is about 2703.8938588635. The cubic root of 7311042 is about 194.0855009805.

Adding to 7311042 its reverse (2401137), we get a palindrome (9712179).

The spelling of 7311042 in words is "seven million, three hundred eleven thousand, forty-two".