10042839 has 8 divisors (see below), whose sum is σ = 14878320. Its totient is φ = 6695208.

The previous prime is 10042817. The next prime is 10042841. The reversal of 10042839 is 93824001.

It is not a de Polignac number, because 10042839 - 2⁵ = 10042807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 371957 = 10042839 / (1 + 0 + 0 + 4 + 2 + 8 + 3 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10042639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185952 + ... + 186005.

It is an arithmetic number, because the mean of its divisors is an integer number (1859790).

Almost surely, 2^10042839 is an apocalyptic number.

10042839 is a deficient number, since it is larger than the sum of its proper divisors (4835481).

10042839 is an equidigital number, since it uses as much as digits as its factorization.

10042839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371966 (or 371960 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 10042839 is about 3169.0438621136. The cubic root of 10042839 is about 215.7506768297.

The spelling of 10042839 in words is "ten million, forty-two thousand, eight hundred thirty-nine".