2905146 has 40 divisors (see below), whose sum is σ = 6621120. Its totient is φ = 951912.

The previous prime is 2905139. The next prime is 2905151. The reversal of 2905146 is 6415092.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12685 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (165528).

2^2905146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2905146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3310560).

2905146 is an abundant number, since it is smaller than the sum of its proper divisors (3715974).

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

2905146 is a wasteful number, since it uses less digits than its factorization.

2905146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2905146 is about 1704.4488845372. The cubic root of 2905146 is about 142.6886145036.

The spelling of 2905146 in words is "two million, nine hundred five thousand, one hundred forty-six".