42826039 has 4 divisors (see below), whose sum is σ = 43134280. Its totient is φ = 42517800.

The previous prime is 42826031. The next prime is 42826073. The reversal of 42826039 is 93062824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42826039 - 2³ = 42826031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42825995 and 42826013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42826031) 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, 153912 + ... + 154189.

It is an arithmetic number, because the mean of its divisors is an integer number (10783570).

Almost surely, 2^42826039 is an apocalyptic number.

42826039 is a deficient number, since it is larger than the sum of its proper divisors (308241).

42826039 is a wasteful number, since it uses less digits than its factorization.

42826039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308240.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 42826039 is about 6544.1606795677. The cubic root of 42826039 is about 349.8667220441.

The spelling of 42826039 in words is "forty-two million, eight hundred twenty-six thousand, thirty-nine".