42735686 has 8 divisors (see below), whose sum is σ = 73261200. Its totient is φ = 18315288.

The previous prime is 42735673. The next prime is 42735691. The reversal of 42735686 is 68653724.

It is a happy number.

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

It is a super-3 number, since 3×42735686³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526261 + ... + 1526288.

It is an arithmetic number, because the mean of its divisors is an integer number (9157650).

Almost surely, 2^42735686 is an apocalyptic number.

42735686 is a deficient number, since it is larger than the sum of its proper divisors (30525514).

42735686 is a wasteful number, since it uses less digits than its factorization.

42735686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052558.

The product of its digits is 241920, while the sum is 41.

The square root of 42735686 is about 6537.2537047295. The cubic root of 42735686 is about 349.6205029544.

The spelling of 42735686 in words is "forty-two million, seven hundred thirty-five thousand, six hundred eighty-six".