1406366 has 8 divisors (see below), whose sum is σ = 2271864. Its totient is φ = 649080.

The previous prime is 1406357. The next prime is 1406387. The reversal of 1406366 is 6636041.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 54091 = 1406366 / (1 + 4 + 0 + 6 + 3 + 6 + 6).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27020 + ... + 27071.

It is an arithmetic number, because the mean of its divisors is an integer number (283983).

2^1406366 is an apocalyptic number.

1406366 is a deficient number, since it is larger than the sum of its proper divisors (865498).

1406366 is a wasteful number, since it uses less digits than its factorization.

1406366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54106.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1406366 is about 1185.9030314490. The cubic root of 1406366 is about 112.0381991300.

The spelling of 1406366 in words is "one million, four hundred six thousand, three hundred sixty-six".