1406369 has 4 divisors (see below), whose sum is σ = 1408944. Its totient is φ = 1403796.

The previous prime is 1406357. The next prime is 1406387. The reversal of 1406369 is 9636041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1406369 - 2²⁰ = 357793 is a prime.

It is a super-2 number, since 2×1406369² = 3955747528322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107 + ... + 1680.

It is an arithmetic number, because the mean of its divisors is an integer number (352236).

2^1406369 is an apocalyptic number.

It is an amenable number.

1406369 is a deficient number, since it is larger than the sum of its proper divisors (2575).

1406369 is an equidigital number, since it uses as much as digits as its factorization.

1406369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1406369 is about 1185.9042963073. The cubic root of 1406369 is about 112.0382787950.

The spelling of 1406369 in words is "one million, four hundred six thousand, three hundred sixty-nine".