2641406 has 8 divisors (see below), whose sum is σ = 3974880. Its totient is φ = 1316448.

The previous prime is 2641391. The next prime is 2641411. The reversal of 2641406 is 6041462.

It is a happy number.

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

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 in 3 ways as a sum of consecutive naturals, for example, 1286 + ... + 2633.

It is an arithmetic number, because the mean of its divisors is an integer number (496860).

2^2641406 is an apocalyptic number.

2641406 is a deficient number, since it is larger than the sum of its proper divisors (1333474).

2641406 is a wasteful number, since it uses less digits than its factorization.

2641406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2641406 is about 1625.2402899264. The cubic root of 2641406 is about 138.2329957384.

Adding to 2641406 its reverse (6041462), we get a palindrome (8682868).

The spelling of 2641406 in words is "two million, six hundred forty-one thousand, four hundred six".