42982830 has 72 divisors (see below), whose sum is σ = 122869656. Its totient is φ = 10417440.

The previous prime is 42982813. The next prime is 42982853. The reversal of 42982830 is 3828924.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8917 + ... + 12863.

It is an arithmetic number, because the mean of its divisors is an integer number (1706523).

Almost surely, 2^42982830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42982830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61434828).

42982830 is an abundant number, since it is smaller than the sum of its proper divisors (79886826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42982830 is a wasteful number, since it uses less digits than its factorization.

42982830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 42982830 is about 6556.1291933579. The cubic root of 42982830 is about 350.2931693310.

The spelling of 42982830 in words is "forty-two million, nine hundred eighty-two thousand, eight hundred thirty".