7422742 has 4 divisors (see below), whose sum is σ = 11134116. Its totient is φ = 3711370.

The previous prime is 7422719. The next prime is 7422743. The reversal of 7422742 is 2472247.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7422742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1855684 + ... + 1855687.

It is an arithmetic number, because the mean of its divisors is an integer number (2783529).

Almost surely, 2^7422742 is an apocalyptic number.

7422742 is a deficient number, since it is larger than the sum of its proper divisors (3711374).

7422742 is a wasteful number, since it uses less digits than its factorization.

7422742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711373.

The product of its digits is 6272, while the sum is 28.

The square root of 7422742 is about 2724.4709578192. The cubic root of 7422742 is about 195.0689390261.

Adding to 7422742 its reverse (2472247), we get a palindrome (9894989).

The spelling of 7422742 in words is "seven million, four hundred twenty-two thousand, seven hundred forty-two".