42828919 has 8 divisors (see below), whose sum is σ = 49104288. Its totient is φ = 36592800.

The previous prime is 42828857. The next prime is 42828959. The reversal of 42828919 is 91982824.

42828919 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 42828919 - 2⁷ = 42828791 is a prime.

It is a super-2 number, since 2×42828919² = 3668632605417122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42828959) 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, 7432 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (6138036).

Almost surely, 2^42828919 is an apocalyptic number.

42828919 is a deficient number, since it is larger than the sum of its proper divisors (6275369).

42828919 is a wasteful number, since it uses less digits than its factorization.

42828919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625.

The product of its digits is 82944, while the sum is 43.

The square root of 42828919 is about 6544.3807193653. The cubic root of 42828919 is about 349.8745645748.

The spelling of 42828919 in words is "forty-two million, eight hundred twenty-eight thousand, nine hundred nineteen".