42489830 has 8 divisors (see below), whose sum is σ = 76481712. Its totient is φ = 16995928.

The previous prime is 42489829. The next prime is 42489841. The reversal of 42489830 is 3898424.

42489830 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 a congruent number.

It is an unprimeable number.

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, 2124482 + ... + 2124501.

It is an arithmetic number, because the mean of its divisors is an integer number (9560214).

Almost surely, 2^42489830 is an apocalyptic number.

42489830 is a deficient number, since it is larger than the sum of its proper divisors (33991882).

42489830 is a wasteful number, since it uses less digits than its factorization.

42489830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248990.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 42489830 is about 6518.4223551409. The cubic root of 42489830 is about 348.9487641088.

The spelling of 42489830 in words is "forty-two million, four hundred eighty-nine thousand, eight hundred thirty".