7838542 has 8 divisors (see below), whose sum is σ = 11923632. Its totient is φ = 3864000.

The previous prime is 7838533. The next prime is 7838543. The reversal of 7838542 is 2458387.

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

It is a super-2 number, since 2×7838542² = 122885481371528, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7838543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27459 + ... + 27742.

It is an arithmetic number, because the mean of its divisors is an integer number (1490454).

Almost surely, 2^7838542 is an apocalyptic number.

7838542 is a deficient number, since it is larger than the sum of its proper divisors (4085090).

7838542 is a wasteful number, since it uses less digits than its factorization.

7838542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55274.

The product of its digits is 53760, while the sum is 37.

The square root of 7838542 is about 2799.7396307514. The cubic root of 7838542 is about 198.6453621635.

The spelling of 7838542 in words is "seven million, eight hundred thirty-eight thousand, five hundred forty-two".