2858394 has 64 divisors (see below), whose sum is σ = 7464960. Its totient is φ = 707520.

The previous prime is 2858393. The next prime is 2858423. The reversal of 2858394 is 4938582.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2858393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10492 + ... + 10760.

It is an arithmetic number, because the mean of its divisors is an integer number (116640).

2^2858394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2858394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3732480).

2858394 is an abundant number, since it is smaller than the sum of its proper divisors (4606566).

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

2858394 is a wasteful number, since it uses less digits than its factorization.

2858394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its digits is 69120, while the sum is 39.

The square root of 2858394 is about 1690.6785619981. The cubic root of 2858394 is about 141.9190506023.

The spelling of 2858394 in words is "two million, eight hundred fifty-eight thousand, three hundred ninety-four".