1006406 has 8 divisors (see below), whose sum is σ = 1513920. Its totient is φ = 501768.

The previous prime is 1006393. The next prime is 1006433. The reversal of 1006406 is 6046001.

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, 800 + ... + 1628.

It is an arithmetic number, because the mean of its divisors is an integer number (189240).

2^1006406 is an apocalyptic number.

1006406 is a deficient number, since it is larger than the sum of its proper divisors (507514).

1006406 is an equidigital number, since it uses as much as digits as its factorization.

1006406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1006406 is about 1003.1978867601. The cubic root of 1006406 is about 100.2130789843.

The spelling of 1006406 in words is "one million, six thousand, four hundred six".