2905884 has 36 divisors (see below), whose sum is σ = 7488936. Its totient is φ = 949728.

The previous prime is 2905867. The next prime is 2905891. The reversal of 2905884 is 4885092.

2905884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1147 + ... + 2669.

It is an arithmetic number, because the mean of its divisors is an integer number (208026).

2^2905884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2905884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3744468).

2905884 is an abundant number, since it is smaller than the sum of its proper divisors (4583052).

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

2905884 is a wasteful number, since it uses less digits than its factorization.

2905884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1581 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2905884 is about 1704.6653630552. The cubic root of 2905884 is about 142.7006959712.

The spelling of 2905884 in words is "two million, nine hundred five thousand, eight hundred eighty-four".