409863231 has 12 divisors (see below), whose sum is σ = 623184120. Its totient is φ = 258860880.

The previous prime is 409863221. The next prime is 409863263. The reversal of 409863231 is 132368904.

It is not a de Polignac number, because 409863231 - 2¹⁴ = 409846847 is a prime.

It is a super-2 number, since 2×409863231² = 335975736251518722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409863211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1198260 + ... + 1198601.

It is an arithmetic number, because the mean of its divisors is an integer number (51932010).

Almost surely, 2^409863231 is an apocalyptic number.

409863231 is a deficient number, since it is larger than the sum of its proper divisors (213320889).

409863231 is a wasteful number, since it uses less digits than its factorization.

409863231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396886 (or 2396883 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 409863231 is about 20245.0791798896. The cubic root of 409863231 is about 742.8132691632.

The spelling of 409863231 in words is "four hundred nine million, eight hundred sixty-three thousand, two hundred thirty-one".