409231 has 8 divisors (see below), whose sum is σ = 433664. Its totient is φ = 385560.

The previous prime is 409217. The next prime is 409237. The reversal of 409231 is 132904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 409231 - 2⁹ = 408719 is a prime.

It is a super-2 number, since 2×409231² = 334940022722, 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 = 409199 and 409208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (54208).

2⁴⁰⁹²³¹ is an apocalyptic number.

409231 is a deficient number, since it is larger than the sum of its proper divisors (24433).

409231 is a wasteful number, since it uses less digits than its factorization.

409231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 409231 is about 639.7116537941. The cubic root of 409231 is about 74.2431132537.

The spelling of 409231 in words is "four hundred nine thousand, two hundred thirty-one".