42712439 has 8 divisors (see below), whose sum is σ = 53251968. Its totient is φ = 33282360.

The previous prime is 42712427. The next prime is 42712457. The reversal of 42712439 is 93421724.

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

It is a cyclic number.

It is not a de Polignac number, because 42712439 - 2⁸ = 42712183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42712409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277277 + ... + 277430.

It is an arithmetic number, because the mean of its divisors is an integer number (6656496).

Almost surely, 2^42712439 is an apocalyptic number.

42712439 is a deficient number, since it is larger than the sum of its proper divisors (10539529).

42712439 is a wasteful number, since it uses less digits than its factorization.

42712439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554725.

The product of its digits is 12096, while the sum is 32.

The square root of 42712439 is about 6535.4754226452. The cubic root of 42712439 is about 349.5570969131.

The spelling of 42712439 in words is "forty-two million, seven hundred twelve thousand, four hundred thirty-nine".