2904858 has 48 divisors (see below), whose sum is σ = 7278336. Its totient is φ = 827520.

The previous prime is 2904857. The next prime is 2904883. The reversal of 2904858 is 8584092.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2904851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2935 + ... + 3797.

It is an arithmetic number, because the mean of its divisors is an integer number (151632).

2^2904858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2904858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3639168).

2904858 is an abundant number, since it is smaller than the sum of its proper divisors (4373478).

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

2904858 is a wasteful number, since it uses less digits than its factorization.

2904858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 896 counting only the distinct ones).

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

The square root of 2904858 is about 1704.3643976568. The cubic root of 2904858 is about 142.6838992295.

The spelling of 2904858 in words is "two million, nine hundred four thousand, eight hundred fifty-eight".