7838842 has 8 divisors (see below), whose sum is σ = 12827232. Its totient is φ = 3563100.

The previous prime is 7838839. The next prime is 7838851. The reversal of 7838842 is 2488387.

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

It is a super-2 number, since 2×7838842² = 122894887801928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7838795 and 7838804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178134 + ... + 178177.

It is an arithmetic number, because the mean of its divisors is an integer number (1603404).

Almost surely, 2^7838842 is an apocalyptic number.

7838842 is a deficient number, since it is larger than the sum of its proper divisors (4988390).

7838842 is a wasteful number, since it uses less digits than its factorization.

7838842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356324.

The product of its digits is 86016, while the sum is 40.

The square root of 7838842 is about 2799.7932066494. The cubic root of 7838842 is about 198.6478963443.

The spelling of 7838842 in words is "seven million, eight hundred thirty-eight thousand, eight hundred forty-two".