942090 has 32 divisors (see below), whose sum is σ = 2336256. Its totient is φ = 242880.

The previous prime is 942079. The next prime is 942091. The reversal of 942090 is 90249.

It is a self number, because there is not a number n which added to its sum of digits gives 942090.

It is not an unprimeable number, because it can be changed into a prime (942091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424 + ... + 1436.

It is an arithmetic number, because the mean of its divisors is an integer number (73008).

2⁹⁴²⁰⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 942090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168128).

942090 is an abundant number, since it is smaller than the sum of its proper divisors (1394166).

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

942090 is a wasteful number, since it uses less digits than its factorization.

942090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 942090 is about 970.6132082349. The cubic root of 942090 is about 98.0311576619.

The spelling of 942090 in words is "nine hundred forty-two thousand, ninety".