1009406 has 8 divisors (see below), whose sum is σ = 1518480. Its totient is φ = 503248.

The previous prime is 1009399. The next prime is 1009417. The reversal of 1009406 is 6049001.

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, 695 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (189810).

2^1009406 is an apocalyptic number.

1009406 is a deficient number, since it is larger than the sum of its proper divisors (509074).

1009406 is an equidigital number, since it uses as much as digits as its factorization.

1009406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1009406 is about 1004.6919926027. The cubic root of 1009406 is about 100.3125554067.

The spelling of 1009406 in words is "one million, nine thousand, four hundred six".