2405859 has 8 divisors (see below), whose sum is σ = 3215040. Its totient is φ = 1600296.

The previous prime is 2405833. The next prime is 2405863. The reversal of 2405859 is 9585042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2405859 is a prime.

It is an Ulam number.

2405859 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2403859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (401880).

2^2405859 is an apocalyptic number.

2405859 is a deficient number, since it is larger than the sum of its proper divisors (809181).

2405859 is a wasteful number, since it uses less digits than its factorization.

2405859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2405859 is about 1551.0831699171. The cubic root of 2405859 is about 133.9954516909.

The spelling of 2405859 in words is "two million, four hundred five thousand, eight hundred fifty-nine".