42719686 has 8 divisors (see below), whose sum is σ = 64203624. Its totient is φ = 21318480.

The previous prime is 42719629. The next prime is 42719687. The reversal of 42719686 is 68691724.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42719687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19375 + ... + 21466.

It is an arithmetic number, because the mean of its divisors is an integer number (8025453).

Almost surely, 2^42719686 is an apocalyptic number.

42719686 is a deficient number, since it is larger than the sum of its proper divisors (21483938).

42719686 is a wasteful number, since it uses less digits than its factorization.

42719686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41366.

The product of its digits is 145152, while the sum is 43.

The square root of 42719686 is about 6536.0298346932. The cubic root of 42719686 is about 349.5768655261.

The spelling of 42719686 in words is "forty-two million, seven hundred nineteen thousand, six hundred eighty-six".