942390 has 48 divisors (see below), whose sum is σ = 2525328. Its totient is φ = 243648.

The previous prime is 942371. The next prime is 942401. The reversal of 942390 is 93249.

942390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3189 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (52611).

2⁹⁴²³⁹⁰ is an apocalyptic number.

942390 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 942390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262664).

942390 is an abundant number, since it is smaller than the sum of its proper divisors (1582938).

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

942390 is a wasteful number, since it uses less digits than its factorization.

942390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 942390 is about 970.7677374120. The cubic root of 942390 is about 98.0415622680.

The spelling of 942390 in words is "nine hundred forty-two thousand, three hundred ninety".