1406219 has 4 divisors (see below), whose sum is σ = 1411680. Its totient is φ = 1400760.

The previous prime is 1406213. The next prime is 1406221. The reversal of 1406219 is 9126041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9126041 = 3001 ⋅3041.

It is a cyclic number.

It is not a de Polignac number, because 1406219 - 2¹² = 1402123 is a prime.

It is a super-2 number, since 2×1406219² = 3954903751922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1406194 and 1406203.

It is not an unprimeable number, because it can be changed into a prime (1406213) 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, 2324 + ... + 2865.

It is an arithmetic number, because the mean of its divisors is an integer number (352920).

2^1406219 is an apocalyptic number.

1406219 is a deficient number, since it is larger than the sum of its proper divisors (5461).

1406219 is an equidigital number, since it uses as much as digits as its factorization.

1406219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1406219 is about 1185.8410517434. The cubic root of 1406219 is about 112.0342954072.

The spelling of 1406219 in words is "one million, four hundred six thousand, two hundred nineteen".