942780 has 48 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 237888.

The previous prime is 942779. The next prime is 942787. The reversal of 942780 is 87249.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727 + ... + 1553.

It is an arithmetic number, because the mean of its divisors is an integer number (57960).

2⁹⁴²⁷⁸⁰ 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 942780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391040).

942780 is an abundant number, since it is smaller than the sum of its proper divisors (1839300).

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

942780 is a wasteful number, since it uses less digits than its factorization.

942780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 942780 is about 970.9685885753. The cubic root of 942780 is about 98.0550849553.

The spelling of 942780 in words is "nine hundred forty-two thousand, seven hundred eighty".