42881529 has 8 divisors (see below), whose sum is σ = 57277792. Its totient is φ = 28536480.

The previous prime is 42881521. The next prime is 42881533. The reversal of 42881529 is 92518824.

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

It is not a de Polignac number, because 42881529 - 2³ = 42881521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42881521) 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, 10804 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (7159724).

Almost surely, 2^42881529 is an apocalyptic number.

It is an amenable number.

42881529 is a deficient number, since it is larger than the sum of its proper divisors (14396263).

42881529 is a wasteful number, since it uses less digits than its factorization.

42881529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25607.

The product of its digits is 46080, while the sum is 39.

The square root of 42881529 is about 6548.3989646325. The cubic root of 42881529 is about 350.0177650847.

The spelling of 42881529 in words is "forty-two million, eight hundred eighty-one thousand, five hundred twenty-nine".