1406329 has 4 divisors (see below), whose sum is σ = 1411684. Its totient is φ = 1400976.

The previous prime is 1406311. The next prime is 1406351. The reversal of 1406329 is 9236041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9236041 = 23 ⋅401567.

It can be written as a sum of positive squares in 2 ways, for example, as 883600 + 522729 = 940^2 + 723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406329 is a prime.

It is a super-2 number, since 2×1406329² = 3955522512482, which contains 22 as substring.

It is a Duffinian number.

1406329 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406389) by changing a digit.

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, 2262 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (352921).

2^1406329 is an apocalyptic number.

It is an amenable number.

1406329 is a deficient number, since it is larger than the sum of its proper divisors (5355).

1406329 is an equidigital number, since it uses as much as digits as its factorization.

1406329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1406329 is about 1185.8874314200. The cubic root of 1406329 is about 112.0372165860.

The spelling of 1406329 in words is "one million, four hundred six thousand, three hundred twenty-nine".