2908290 has 64 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 603840.

The previous prime is 2908277. The next prime is 2908291. The reversal of 2908290 is 928092.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2908291) 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 31 ways as a sum of consecutive naturals, for example, 1681 + ... + 2939.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^2908290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2908290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354560).

2908290 is an abundant number, since it is smaller than the sum of its proper divisors (5800830).

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

2908290 is a wasteful number, since it uses less digits than its factorization.

2908290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 2908290 is about 1705.3709273938. The cubic root of 2908290 is about 142.7400693208.

The spelling of 2908290 in words is "two million, nine hundred eight thousand, two hundred ninety".