1318406 has 8 divisors (see below), whose sum is σ = 2063664. Its totient is φ = 630520.

The previous prime is 1318379. The next prime is 1318409. The reversal of 1318406 is 6048131.

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 (23).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14285 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (257958).

2^1318406 is an apocalyptic number.

1318406 is a deficient number, since it is larger than the sum of its proper divisors (745258).

1318406 is a wasteful number, since it uses less digits than its factorization.

1318406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28686.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1318406 is about 1148.2186202984. The cubic root of 1318406 is about 109.6519578002.

The spelling of 1318406 in words is "one million, three hundred eighteen thousand, four hundred six".