42828743 has 4 divisors (see below), whose sum is σ = 42966768. Its totient is φ = 42690720.

The previous prime is 42828733. The next prime is 42828767. The reversal of 42828743 is 34782824.

It is a happy number.

42828743 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.

It is a cyclic number.

It is not a de Polignac number, because 42828743 - 2⁴ = 42828727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42828697 and 42828706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42828713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68546 + ... + 69167.

It is an arithmetic number, because the mean of its divisors is an integer number (10741692).

Almost surely, 2^42828743 is an apocalyptic number.

42828743 is a deficient number, since it is larger than the sum of its proper divisors (138025).

42828743 is a wasteful number, since it uses less digits than its factorization.

42828743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138024.

The product of its digits is 86016, while the sum is 38.

The square root of 42828743 is about 6544.3672727010. The cubic root of 42828743 is about 349.8740853191.

The spelling of 42828743 in words is "forty-two million, eight hundred twenty-eight thousand, seven hundred forty-three".