9542642 has 4 divisors (see below), whose sum is σ = 14313966. Its totient is φ = 4771320.

The previous prime is 9542629. The next prime is 9542683. The reversal of 9542642 is 2462459.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2462459 = 337 ⋅7307.

It can be written as a sum of positive squares in only one way, i.e., 7722841 + 1819801 = 2779^2 + 1349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9542599 and 9542608.

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, 2385659 + ... + 2385662.

Almost surely, 2^9542642 is an apocalyptic number.

9542642 is a deficient number, since it is larger than the sum of its proper divisors (4771324).

9542642 is a wasteful number, since it uses less digits than its factorization.

9542642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771323.

The product of its digits is 17280, while the sum is 32.

The square root of 9542642 is about 3089.1167022306. The cubic root of 9542642 is about 212.1075904578.

The spelling of 9542642 in words is "nine million, five hundred forty-two thousand, six hundred forty-two".