7423442 has 8 divisors (see below), whose sum is σ = 11991756. Its totient is φ = 3426192.

The previous prime is 7423417. The next prime is 7423453. The reversal of 7423442 is 2443247.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 192721 = 2689^2 + 439^2 .

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

It is a super-2 number, since 2×7423442² = 110214982254728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 285517 = 7423442 / (7 + 4 + 2 + 3 + 4 + 4 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142733 + ... + 142784.

Almost surely, 2^7423442 is an apocalyptic number.

7423442 is a deficient number, since it is larger than the sum of its proper divisors (4568314).

7423442 is a wasteful number, since it uses less digits than its factorization.

7423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285532.

The product of its digits is 5376, while the sum is 26.

The square root of 7423442 is about 2724.5994200983. The cubic root of 7423442 is about 195.0750708107.

Adding to 7423442 its reverse (2443247), we get a palindrome (9866689).

The spelling of 7423442 in words is "seven million, four hundred twenty-three thousand, four hundred forty-two".