406319 has 4 divisors (see below), whose sum is σ = 420360. Its totient is φ = 392280.

The previous prime is 406313. The next prime is 406327. The reversal of 406319 is 913604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406319 - 2¹² = 402223 is a prime.

It is a super-2 number, since 2×406319² = 330190259522, 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 = 406294 and 406303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406313) 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, 6977 + ... + 7034.

It is an arithmetic number, because the mean of its divisors is an integer number (105090).

2⁴⁰⁶³¹⁹ is an apocalyptic number.

406319 is a deficient number, since it is larger than the sum of its proper divisors (14041).

406319 is a wasteful number, since it uses less digits than its factorization.

406319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14040.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 406319 is about 637.4315649542. The cubic root of 406319 is about 74.0665945442.

The spelling of 406319 in words is "four hundred six thousand, three hundred nineteen".