7312442 has 8 divisors (see below), whose sum is σ = 11082036. Its totient is φ = 3618432.

The previous prime is 7312441. The next prime is 7312453. The reversal of 7312442 is 2442137.

It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 337561 = 2641^2 + 581^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7312441) 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 3 ways as a sum of consecutive naturals, for example, 18653 + ... + 19040.

Almost surely, 2^7312442 is an apocalyptic number.

7312442 is a deficient number, since it is larger than the sum of its proper divisors (3769594).

7312442 is a wasteful number, since it uses less digits than its factorization.

7312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37792.

The product of its digits is 1344, while the sum is 23.

The square root of 7312442 is about 2704.1527323729. The cubic root of 7312442 is about 194.0978887432.

Adding to 7312442 its reverse (2442137), we get a palindrome (9754579).

The spelling of 7312442 in words is "seven million, three hundred twelve thousand, four hundred forty-two".