3090906 has 128 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 746496.

The previous prime is 3090887. The next prime is 3090959. The reversal of 3090906 is 6090903.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3090906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83520 + ... + 83556.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

Almost surely, 2^3090906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3090906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4596480).

3090906 is an abundant number, since it is smaller than the sum of its proper divisors (6102054).

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

3090906 is a wasteful number, since it uses less digits than its factorization.

3090906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 3090906 is about 1758.0972669338. The cubic root of 3090906 is about 145.6672537288.

The spelling of 3090906 in words is "three million, ninety thousand, nine hundred six".