7420342 has 4 divisors (see below), whose sum is σ = 11130516. Its totient is φ = 3710170.

The previous prime is 7420339. The next prime is 7420363. The reversal of 7420342 is 2430247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2430247 = 691 ⋅3517.

It is a super-2 number, since 2×7420342² = 110122950793928, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1855084 + ... + 1855087.

It is an arithmetic number, because the mean of its divisors is an integer number (2782629).

Almost surely, 2^7420342 is an apocalyptic number.

7420342 is a deficient number, since it is larger than the sum of its proper divisors (3710174).

7420342 is a wasteful number, since it uses less digits than its factorization.

7420342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710173.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 7420342 is about 2724.0304697268. The cubic root of 7420342 is about 195.0479128375.

Adding to 7420342 its reverse (2430247), we get a palindrome (9850589).

The spelling of 7420342 in words is "seven million, four hundred twenty thousand, three hundred forty-two".