2931090 has 32 divisors (see below), whose sum is σ = 7209216. Its totient is φ = 762240.

The previous prime is 2931083. The next prime is 2931101. The reversal of 2931090 is 901392.

It is a happy number.

2931090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2931090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (225288).

2^2931090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2931090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3604608).

2931090 is an abundant number, since it is smaller than the sum of its proper divisors (4278126).

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

2931090 is a wasteful number, since it uses less digits than its factorization.

2931090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 2931090 is about 1712.0426396559. The cubic root of 2931090 is about 143.1121099100.

The spelling of 2931090 in words is "two million, nine hundred thirty-one thousand, ninety".