2443859 has 16 divisors (see below), whose sum is σ = 2833920. Its totient is φ = 2086560.

The previous prime is 2443849. The next prime is 2443867. The reversal of 2443859 is 9583442.

It is a cyclic number.

It is not a de Polignac number, because 2443859 - 2²⁰ = 1395283 is a prime.

It is a d-powerful number, because it can be written as 2²⁰ + 4⁸ + 4⁹ + 3¹² + 8⁴ + 5⁴ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2443829) 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, 14912 + ... + 15074.

It is an arithmetic number, because the mean of its divisors is an integer number (177120).

2^2443859 is an apocalyptic number.

2443859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2443859 is a deficient number, since it is larger than the sum of its proper divisors (390061).

2443859 is a wasteful number, since it uses less digits than its factorization.

2443859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 34560, while the sum is 35.

The square root of 2443859 is about 1563.2846829672. The cubic root of 2443859 is about 134.6972456400.

The spelling of 2443859 in words is "two million, four hundred forty-three thousand, eight hundred fifty-nine".