42775719 has 8 divisors (see below), whose sum is σ = 65182080. Its totient is φ = 24443256.

The previous prime is 42775709. The next prime is 42775727. The reversal of 42775719 is 91757724.

42775719 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 not a de Polignac number, because 42775719 - 2²⁴ = 25998503 is a prime.

It is a super-2 number, since 2×42775719² = 3659524271933922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775709) 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, 1018449 + ... + 1018490.

It is an arithmetic number, because the mean of its divisors is an integer number (8147760).

Almost surely, 2^42775719 is an apocalyptic number.

42775719 is a deficient number, since it is larger than the sum of its proper divisors (22406361).

42775719 is a wasteful number, since it uses less digits than its factorization.

42775719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036949.

The product of its digits is 123480, while the sum is 42.

The square root of 42775719 is about 6540.3149006757. The cubic root of 42775719 is about 349.7296388295.

The spelling of 42775719 in words is "forty-two million, seven hundred seventy-five thousand, seven hundred nineteen".