5605406 has 8 divisors (see below), whose sum is σ = 8420760. Its totient is φ = 2798488.

The previous prime is 5605387. The next prime is 5605423. The reversal of 5605406 is 6045065.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 3348.

It is an arithmetic number, because the mean of its divisors is an integer number (1052595).

Almost surely, 2^5605406 is an apocalyptic number.

5605406 is a deficient number, since it is larger than the sum of its proper divisors (2815354).

5605406 is a wasteful number, since it uses less digits than its factorization.

5605406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 5605406 is about 2367.5738636841. The cubic root of 5605406 is about 177.6379249353.

It can be divided in two parts, 5 and 605406, that multiplied together give a triangular number (3027030 = T₂₄₆₀).

The spelling of 5605406 in words is "five million, six hundred five thousand, four hundred six".