2405842 has 8 divisors (see below), whose sum is σ = 3618432. Its totient is φ = 1199700.

The previous prime is 2405833. The next prime is 2405863. The reversal of 2405842 is 2485042.

It is a happy number.

2405842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534 + ... + 2257.

It is an arithmetic number, because the mean of its divisors is an integer number (452304).

2^2405842 is an apocalyptic number.

2405842 is a deficient number, since it is larger than the sum of its proper divisors (1212590).

2405842 is a wasteful number, since it uses less digits than its factorization.

2405842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2405842 is about 1551.0776898660. The cubic root of 2405842 is about 133.9951360825.

The spelling of 2405842 in words is "two million, four hundred five thousand, eight hundred forty-two".