842840628 has 48 divisors (see below), whose sum is σ = 2251046784. Its totient is φ = 240439680.

The previous prime is 842840561. The next prime is 842840629. The reversal of 842840628 is 826048248.

842840628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 842840628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842840629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49458 + ... + 64278.

It is an arithmetic number, because the mean of its divisors is an integer number (46896808).

Almost surely, 2^842840628 is an apocalyptic number.

It is an amenable number.

842840628 is an abundant number, since it is smaller than the sum of its proper divisors (1408206156).

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

842840628 is a wasteful number, since it uses less digits than its factorization.

842840628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15512 (or 15510 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 842840628 is about 29031.7176205611. The cubic root of 842840628 is about 944.6011877806.

The spelling of 842840628 in words is "eight hundred forty-two million, eight hundred forty thousand, six hundred twenty-eight".