942820 has 48 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 341504.

The previous prime is 942811. The next prime is 942827. The reversal of 942820 is 28249.

942820 = T₂₉₇ + T₂₉₈ + ... + T₃₁₆.

942820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (942827) by changing a digit.

942820 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15951 + ... + 16009.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2⁹⁴²⁸²⁰ 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 942820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088640).

942820 is an abundant number, since it is smaller than the sum of its proper divisors (1234460).

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

942820 is a wasteful number, since it uses less digits than its factorization.

942820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 942820 is about 970.9891863456. The cubic root of 942820 is about 98.0564716868.

The spelling of 942820 in words is "nine hundred forty-two thousand, eight hundred twenty".