42929305 has 8 divisors (see below), whose sum is σ = 51550344. Its totient is φ = 34320000.

The previous prime is 42929297. The next prime is 42929317. The reversal of 42929305 is 50392924.

It can be written as a sum of positive squares in 4 ways, for example, as 5621641 + 37307664 = 2371^2 + 6108^2 .

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

It is not a de Polignac number, because 42929305 - 2³ = 42929297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12805 + ... + 15805.

It is an arithmetic number, because the mean of its divisors is an integer number (6443793).

Almost surely, 2^42929305 is an apocalyptic number.

It is an amenable number.

42929305 is a deficient number, since it is larger than the sum of its proper divisors (8621039).

42929305 is a wasteful number, since it uses less digits than its factorization.

42929305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 42929305 is about 6552.0458636978. The cubic root of 42929305 is about 350.1477063639.

It can be divided in two parts, 42929 and 305, that added together give a palindrome (43234).

The spelling of 42929305 in words is "forty-two million, nine hundred twenty-nine thousand, three hundred five".