406469 has 4 divisors (see below), whose sum is σ = 464544. Its totient is φ = 348396.

The previous prime is 406447. The next prime is 406481. The reversal of 406469 is 964604.

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 406469 - 2¹⁶ = 340933 is a prime.

It is a super-2 number, since 2×406469² = 330434095922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29027 + ... + 29040.

It is an arithmetic number, because the mean of its divisors is an integer number (116136).

2⁴⁰⁶⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

406469 is a deficient number, since it is larger than the sum of its proper divisors (58075).

406469 is an equidigital number, since it uses as much as digits as its factorization.

406469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58074.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 406469 is about 637.5492137867. The cubic root of 406469 is about 74.0757077634.

The spelling of 406469 in words is "four hundred six thousand, four hundred sixty-nine".