7839342 has 80 divisors (see below), whose sum is σ = 20815872. Its totient is φ = 2157840.

The previous prime is 7839331. The next prime is 7839347. The reversal of 7839342 is 2439387.

It is a super-2 number, since 2×7839342² = 122910565985928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7839297 and 7839306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7839347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35043 + ... + 35265.

Almost surely, 2^7839342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7839342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10407936).

7839342 is an abundant number, since it is smaller than the sum of its proper divisors (12976530).

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

7839342 is a wasteful number, since it uses less digits than its factorization.

7839342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 266 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 7839342 is about 2799.8824975345. The cubic root of 7839342 is about 198.6521198353.

The spelling of 7839342 in words is "seven million, eight hundred thirty-nine thousand, three hundred forty-two".