2858240 has 144 divisors (see below), whose sum is σ = 8830080. Its totient is φ = 860160.

The previous prime is 2858221. The next prime is 2858243. The reversal of 2858240 is 428582.

2858240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98546 + ... + 98574.

It is an arithmetic number, because the mean of its divisors is an integer number (61320).

2^2858240 is an apocalyptic number.

2858240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2858240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4415040).

2858240 is an abundant number, since it is smaller than the sum of its proper divisors (5971840).

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

2858240 is a wasteful number, since it uses less digits than its factorization.

2858240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2858240 is about 1690.6330175411. The cubic root of 2858240 is about 141.9165018603.

The spelling of 2858240 in words is "two million, eight hundred fifty-eight thousand, two hundred forty".