42929855 has 8 divisors (see below), whose sum is σ = 51825312. Its totient is φ = 34137568.

The previous prime is 42929851. The next prime is 42929869. The reversal of 42929855 is 55892924.

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

It is a cyclic number.

It is not a de Polignac number, because 42929855 - 2² = 42929851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42929851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24872 + ... + 26541.

It is an arithmetic number, because the mean of its divisors is an integer number (6478164).

Almost surely, 2^42929855 is an apocalyptic number.

42929855 is a deficient number, since it is larger than the sum of its proper divisors (8895457).

42929855 is a wasteful number, since it uses less digits than its factorization.

42929855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51585.

The product of its digits is 259200, while the sum is 44.

The square root of 42929855 is about 6552.0878351866. The cubic root of 42929855 is about 350.1492016938.

The spelling of 42929855 in words is "forty-two million, nine hundred twenty-nine thousand, eight hundred fifty-five".