42842830 has 8 divisors (see below), whose sum is σ = 77117112. Its totient is φ = 17137128.

The previous prime is 42842819. The next prime is 42842869. The reversal of 42842830 is 3824824.

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

It is a junction number, because it is equal to n+sod(n) for n = 42842792 and 42842801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142132 + ... + 2142151.

It is an arithmetic number, because the mean of its divisors is an integer number (9639639).

Almost surely, 2^42842830 is an apocalyptic number.

42842830 is a deficient number, since it is larger than the sum of its proper divisors (34274282).

42842830 is a wasteful number, since it uses less digits than its factorization.

42842830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284290.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 42842830 is about 6545.4434532734. The cubic root of 42842830 is about 349.9124406822.

The spelling of 42842830 in words is "forty-two million, eight hundred forty-two thousand, eight hundred thirty".