8090442 has 56 divisors (see below), whose sum is σ = 18887040. Its totient is φ = 2595240.

The previous prime is 8090441. The next prime is 8090443. The reversal of 8090442 is 2440908.

It is an interprime number because it is at equal distance from previous prime (8090441) and next prime (8090443).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8090441) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 45109 + ... + 45287.

Almost surely, 2^8090442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8090442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9443520).

8090442 is an abundant number, since it is smaller than the sum of its proper divisors (10796598).

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

8090442 is a wasteful number, since it uses less digits than its factorization.

8090442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8090442 is about 2844.3702290665. The cubic root of 8090442 is about 200.7508608455.

The spelling of 8090442 in words is "eight million, ninety thousand, four hundred forty-two".