406334531 has 4 divisors (see below), whose sum is σ = 406461000. Its totient is φ = 406208064.

The previous prime is 406334521. The next prime is 406334543. The reversal of 406334531 is 135433604.

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 406334531 - 2²² = 402140227 is a prime.

It is a super-2 number, since 2×406334531² = 330215502165979922, 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 = 406334494 and 406334503.

It is not an unprimeable number, because it can be changed into a prime (406334501) 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, 58286 + ... + 64883.

It is an arithmetic number, because the mean of its divisors is an integer number (101615250).

Almost surely, 2^406334531 is an apocalyptic number.

406334531 is a deficient number, since it is larger than the sum of its proper divisors (126469).

406334531 is a wasteful number, since it uses less digits than its factorization.

406334531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126468.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 406334531 is about 20157.7412177059. The cubic root of 406334531 is about 740.6753823097.

The spelling of 406334531 in words is "four hundred six million, three hundred thirty-four thousand, five hundred thirty-one".