1316406 has 32 divisors (see below), whose sum is σ = 3241728. Its totient is φ = 347040.

The previous prime is 1316401. The next prime is 1316407. The reversal of 1316406 is 6046131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (101304).

2^1316406 is an apocalyptic number.

1316406 is an abundant number, since it is smaller than the sum of its proper divisors (1925322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316406 is a wasteful number, since it uses less digits than its factorization.

1316406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1316406 is about 1147.3473754709. The cubic root of 1316406 is about 109.5964830065.

The spelling of 1316406 in words is "one million, three hundred sixteen thousand, four hundred six".