1608090 has 48 divisors (see below), whose sum is σ = 4251744. Its totient is φ = 388960.

The previous prime is 1608083. The next prime is 1608107. The reversal of 1608090 is 908061.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1608090.

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, 3409 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (88578).

2^1608090 is an apocalyptic number.

1608090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1608090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2125872).

1608090 is an abundant number, since it is smaller than the sum of its proper divisors (2643654).

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

1608090 is a wasteful number, since it uses less digits than its factorization.

1608090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1608090 is about 1268.1048852520. The cubic root of 1608090 is about 117.1575057458.

The spelling of 1608090 in words is "one million, six hundred eight thousand, ninety".