7685442 has 20 divisors (see below), whose sum is σ = 17221446. Its totient is φ = 2561760.

The previous prime is 7685437. The next prime is 7685459. The reversal of 7685442 is 2445867.

It can be written as a sum of positive squares in only one way, i.e., 6859161 + 826281 = 2619^2 + 909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7685397 and 7685406.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23559 + ... + 23882.

Almost surely, 2^7685442 is an apocalyptic number.

7685442 is an abundant number, since it is smaller than the sum of its proper divisors (9536004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7685442 is a wasteful number, since it uses less digits than its factorization.

7685442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47455 (or 47446 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 7685442 is about 2772.2629745390. The cubic root of 7685442 is about 197.3435560760.

The spelling of 7685442 in words is "seven million, six hundred eighty-five thousand, four hundred forty-two".