2457868 has 24 divisors (see below), whose sum is σ = 5037984. Its totient is φ = 1027200.

The previous prime is 2457839. The next prime is 2457869. The reversal of 2457868 is 8687542.

It is a super-2 number, since 2×2457868² = 12082230210848, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 4⁴ + 5⁷ + 7³ + 8 + 6⁷ + 8⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2457868.

It is not an unprimeable number, because it can be changed into a prime (2457869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78 + ... + 2218.

It is an arithmetic number, because the mean of its divisors is an integer number (209916).

2^2457868 is an apocalyptic number.

2457868 is a gapful number since it is divisible by the number (28) 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 2457868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518992).

2457868 is an abundant number, since it is smaller than the sum of its proper divisors (2580116).

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

2457868 is a wasteful number, since it uses less digits than its factorization.

2457868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2191 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 2457868 is about 1567.7589100369. The cubic root of 2457868 is about 134.9541316509.

The spelling of 2457868 in words is "two million, four hundred fifty-seven thousand, eight hundred sixty-eight".