42828749 has 8 divisors (see below), whose sum is σ = 43657920. Its totient is φ = 42003136.

The previous prime is 42828733. The next prime is 42828767. The reversal of 42828749 is 94782824.

42828749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42828749 - 2⁴ = 42828733 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 (42828769) 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 7 ways as a sum of consecutive naturals, for example, 43349 + ... + 44325.

It is an arithmetic number, because the mean of its divisors is an integer number (5457240).

Almost surely, 2^42828749 is an apocalyptic number.

It is an amenable number.

42828749 is a deficient number, since it is larger than the sum of its proper divisors (829171).

42828749 is an equidigital number, since it uses as much as digits as its factorization.

42828749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779.

The product of its digits is 258048, while the sum is 44.

The square root of 42828749 is about 6544.3677311105. The cubic root of 42828749 is about 349.8741016574.

It can be divided in two parts, 4282 and 8749, that added together give a palindrome (13031).

The spelling of 42828749 in words is "forty-two million, eight hundred twenty-eight thousand, seven hundred forty-nine".