42576729 has 8 divisors (see below), whose sum is σ = 61135872. Its totient is φ = 26201040.

The previous prime is 42576713. The next prime is 42576731. The reversal of 42576729 is 92767524.

42576729 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 42576729 - 2⁴ = 42576713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42576769) 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, 545817 + ... + 545894.

It is an arithmetic number, because the mean of its divisors is an integer number (7641984).

Almost surely, 2^42576729 is an apocalyptic number.

It is an amenable number.

42576729 is a deficient number, since it is larger than the sum of its proper divisors (18559143).

42576729 is a wasteful number, since it uses less digits than its factorization.

42576729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091727.

The product of its digits is 211680, while the sum is 42.

The square root of 42576729 is about 6525.0845971527. The cubic root of 42576729 is about 349.1864888380.

The spelling of 42576729 in words is "forty-two million, five hundred seventy-six thousand, seven hundred twenty-nine".