42929331 has 4 divisors (see below), whose sum is σ = 57239112. Its totient is φ = 28619552.

The previous prime is 42929317. The next prime is 42929347. The reversal of 42929331 is 13392924.

42929331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42929331 - 2¹³ = 42921139 is a prime.

It is a super-2 number, since 2×42929331² = 3685854920215122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42929292 and 42929301.

It is not an unprimeable number, because it can be changed into a prime (42927331) 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 3 ways as a sum of consecutive naturals, for example, 7154886 + ... + 7154891.

It is an arithmetic number, because the mean of its divisors is an integer number (14309778).

Almost surely, 2^42929331 is an apocalyptic number.

42929331 is a deficient number, since it is larger than the sum of its proper divisors (14309781).

42929331 is a wasteful number, since it uses less digits than its factorization.

42929331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14309780.

The product of its digits is 11664, while the sum is 33.

The square root of 42929331 is about 6552.0478478106. The cubic root of 42929331 is about 350.1477770526.

The spelling of 42929331 in words is "forty-two million, nine hundred twenty-nine thousand, three hundred thirty-one".