42724617 has 8 divisors (see below), whose sum is σ = 61348224. Its totient is φ = 26292048.

The previous prime is 42724609. The next prime is 42724657. The reversal of 42724617 is 71642724.

42724617 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 42724617 - 2³ = 42724609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42724607) 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, 547713 + ... + 547790.

It is an arithmetic number, because the mean of its divisors is an integer number (7668528).

Almost surely, 2^42724617 is an apocalyptic number.

It is an amenable number.

42724617 is a deficient number, since it is larger than the sum of its proper divisors (18623607).

42724617 is a wasteful number, since it uses less digits than its factorization.

42724617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095519.

The product of its digits is 18816, while the sum is 33.

The square root of 42724617 is about 6536.4070405690. The cubic root of 42724617 is about 349.5903151974.

The spelling of 42724617 in words is "forty-two million, seven hundred twenty-four thousand, six hundred seventeen".