1426406 has 8 divisors (see below), whose sum is σ = 2252280. Its totient is φ = 675648.

The previous prime is 1426393. The next prime is 1426427. The reversal of 1426406 is 6046241.

It is a happy number.

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, 18731 + ... + 18806.

It is an arithmetic number, because the mean of its divisors is an integer number (281535).

2^1426406 is an apocalyptic number.

1426406 is a deficient number, since it is larger than the sum of its proper divisors (825874).

1426406 is a wasteful number, since it uses less digits than its factorization.

1426406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37558.

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

The square root of 1426406 is about 1194.3224020339. The cubic root of 1426406 is about 112.5678537164.

The spelling of 1426406 in words is "one million, four hundred twenty-six thousand, four hundred six".