42719345 has 8 divisors (see below), whose sum is σ = 51412200. Its totient is φ = 34076160.

The previous prime is 42719323. The next prime is 42719359. The reversal of 42719345 is 54391724.

42719345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 430336 + 42289009 = 656^2 + 6503^2 .

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

It is not a de Polignac number, because 42719345 - 2¹⁰ = 42718321 is a prime.

It is an unprimeable number.

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, 10496 + ... + 13985.

It is an arithmetic number, because the mean of its divisors is an integer number (6426525).

Almost surely, 2^42719345 is an apocalyptic number.

It is an amenable number.

42719345 is a deficient number, since it is larger than the sum of its proper divisors (8692855).

42719345 is a wasteful number, since it uses less digits than its factorization.

42719345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24835.

The product of its digits is 30240, while the sum is 35.

The square root of 42719345 is about 6536.0037484689. The cubic root of 42719345 is about 349.5759353848.

The spelling of 42719345 in words is "forty-two million, seven hundred nineteen thousand, three hundred forty-five".