8942820 has 48 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 2361856.

The previous prime is 8942803. The next prime is 8942821. The reversal of 8942820 is 282498.

It is not an unprimeable number, because it can be changed into a prime (8942821) 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, 6121 + ... + 7439.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^8942820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8942820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12640320).

8942820 is an abundant number, since it is smaller than the sum of its proper divisors (16337820).

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

8942820 is a wasteful number, since it uses less digits than its factorization.

8942820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 8942820 is about 2990.4548149069. The cubic root of 8942820 is about 207.5669305547.

The spelling of 8942820 in words is "eight million, nine hundred forty-two thousand, eight hundred twenty".