2415806 has 4 divisors (see below), whose sum is σ = 3623712. Its totient is φ = 1207902.

The previous prime is 2415779. The next prime is 2415839. The reversal of 2415806 is 6085142.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2415806² = 11672237259272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603950 + ... + 603953.

It is an arithmetic number, because the mean of its divisors is an integer number (905928).

2^2415806 is an apocalyptic number.

2415806 is a deficient number, since it is larger than the sum of its proper divisors (1207906).

2415806 is a wasteful number, since it uses less digits than its factorization.

2415806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207905.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2415806 is about 1554.2863314074. The cubic root of 2415806 is about 134.1798653905.

The spelling of 2415806 in words is "two million, four hundred fifteen thousand, eight hundred six".