406232539 has 4 divisors (see below), whose sum is σ = 406696624. Its totient is φ = 405768456.

The previous prime is 406232513. The next prime is 406232573. The reversal of 406232539 is 935232604.

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 406232539 - 2¹¹ = 406230491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406232039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230727 + ... + 232480.

It is an arithmetic number, because the mean of its divisors is an integer number (101674156).

Almost surely, 2^406232539 is an apocalyptic number.

406232539 is a deficient number, since it is larger than the sum of its proper divisors (464085).

406232539 is an equidigital number, since it uses as much as digits as its factorization.

406232539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464084.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 406232539 is about 20155.2112119918. The cubic root of 406232539 is about 740.6134060485.

The spelling of 406232539 in words is "four hundred six million, two hundred thirty-two thousand, five hundred thirty-nine".