42929770 has 16 divisors (see below), whose sum is σ = 83217960. Its totient is φ = 15850944.

The previous prime is 42929723. The next prime is 42929771. The reversal of 42929770 is 7792924.

42929770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36614601 + 6315169 = 6051^2 + 2513^2 .

It is not an unprimeable number, because it can be changed into a prime (42929771) 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, 164985 + ... + 165244.

Almost surely, 2^42929770 is an apocalyptic number.

42929770 is a deficient number, since it is larger than the sum of its proper divisors (40288190).

42929770 is a wasteful number, since it uses less digits than its factorization.

42929770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330249.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 42929770 is about 6552.0813487013. The cubic root of 42929770 is about 350.1489705982.

The spelling of 42929770 in words is "forty-two million, nine hundred twenty-nine thousand, seven hundred seventy".