7347121442 has 4 divisors (see below), whose sum is σ = 11020682166. Its totient is φ = 3673560720.

The previous prime is 7347121433. The next prime is 7347121511. The reversal of 7347121442 is 2441217437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2441217437 = 28349 ⋅86113.

It can be written as a sum of positive squares in only one way, i.e., 7162406161 + 184715281 = 84631^2 + 13591^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1836780359 + ... + 1836780362.

Almost surely, 2^7347121442 is an apocalyptic number.

7347121442 is a deficient number, since it is larger than the sum of its proper divisors (3673560724).

7347121442 is a wasteful number, since it uses less digits than its factorization.

7347121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673560723.

The product of its digits is 37632, while the sum is 35.

The square root of 7347121442 is about 85715.3512621864. The cubic root of 7347121442 is about 1944.0424301128.

Adding to 7347121442 its reverse (2441217437), we get a palindrome (9788338879).

The spelling of 7347121442 in words is "seven billion, three hundred forty-seven million, one hundred twenty-one thousand, four hundred forty-two".