7839142 has 8 divisors (see below), whose sum is σ = 12450456. Its totient is φ = 3688992.

The previous prime is 7839137. The next prime is 7839151. The reversal of 7839142 is 2419387.

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

It is a super-2 number, since 2×7839142² = 122904294592328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 230563 = 7839142 / (7 + 8 + 3 + 9 + 1 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 7839098 and 7839107.

It is a congruent number.

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, 115248 + ... + 115315.

It is an arithmetic number, because the mean of its divisors is an integer number (1556307).

Almost surely, 2^7839142 is an apocalyptic number.

7839142 is a deficient number, since it is larger than the sum of its proper divisors (4611314).

7839142 is a wasteful number, since it uses less digits than its factorization.

7839142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230582.

The product of its digits is 12096, while the sum is 34.

The square root of 7839142 is about 2799.8467815222. The cubic root of 7839142 is about 198.6504304605.

The spelling of 7839142 in words is "seven million, eight hundred thirty-nine thousand, one hundred forty-two".