2393856 has 54 divisors (see below), whose sum is σ = 6908720. Its totient is φ = 797184.

The previous prime is 2393849. The next prime is 2393857. The reversal of 2393856 is 6583932.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2²¹ + 3⁸ + 9 + 3⁸ + 8³ + 5⁵ + 6⁷ .

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2393856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2393857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1785 + ... + 2823.

2^2393856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2393856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3454360).

2393856 is an abundant number, since it is smaller than the sum of its proper divisors (4514864).

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

2393856 is a wasteful number, since it uses less digits than its factorization.

2393856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1044 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2393856 is about 1547.2091002835. The cubic root of 2393856 is about 133.7722424942.

It can be divided in two parts, 2393 and 856, that added together give a square (3249 = 57²).

The spelling of 2393856 in words is "two million, three hundred ninety-three thousand, eight hundred fifty-six".