6220406 has 8 divisors (see below), whose sum is σ = 9388344. Its totient is φ = 3090960.

The previous prime is 6220399. The next prime is 6220411. The reversal of 6220406 is 6040226.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9215 + ... + 9866.

It is an arithmetic number, because the mean of its divisors is an integer number (1173543).

Almost surely, 2^6220406 is an apocalyptic number.

6220406 is a deficient number, since it is larger than the sum of its proper divisors (3167938).

6220406 is a wasteful number, since it uses less digits than its factorization.

6220406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19246.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 6220406 is about 2494.0741769242. The cubic root of 6220406 is about 183.9103809003.

The spelling of 6220406 in words is "six million, two hundred twenty thousand, four hundred six".