7918742 has 16 divisors (see below), whose sum is σ = 12882912. Its totient is φ = 3628800.

The previous prime is 7918727. The next prime is 7918793. The reversal of 7918742 is 2478197.

It is a junction number, because it is equal to n+sod(n) for n = 7918696 and 7918705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2918 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (805182).

Almost surely, 2^7918742 is an apocalyptic number.

7918742 is a deficient number, since it is larger than the sum of its proper divisors (4964170).

7918742 is a wasteful number, since it uses less digits than its factorization.

7918742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183.

The product of its digits is 28224, while the sum is 38.

The square root of 7918742 is about 2814.0259416004. The cubic root of 7918742 is about 199.3205443138.

The spelling of 7918742 in words is "seven million, nine hundred eighteen thousand, seven hundred forty-two".