10242839 has 4 divisors (see below), whose sum is σ = 10336920. Its totient is φ = 10148760.

The previous prime is 10242809. The next prime is 10242847. The reversal of 10242839 is 93824201.

10242839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93824201 = 397 ⋅236333.

It is a cyclic number.

It is not a de Polignac number, because 10242839 - 2¹⁶ = 10177303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10242809) 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, 46877 + ... + 47094.

It is an arithmetic number, because the mean of its divisors is an integer number (2584230).

Almost surely, 2^10242839 is an apocalyptic number.

10242839 is a deficient number, since it is larger than the sum of its proper divisors (94081).

10242839 is an equidigital number, since it uses as much as digits as its factorization.

10242839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94080.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 10242839 is about 3200.4435630081. The cubic root of 10242839 is about 217.1734757848.

The spelling of 10242839 in words is "ten million, two hundred forty-two thousand, eight hundred thirty-nine".