406626133 has 4 divisors (see below), whose sum is σ = 412196428. Its totient is φ = 401055840.

The previous prime is 406626109. The next prime is 406626161. The reversal of 406626133 is 331626604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169989444 + 236636689 = 13038^2 + 15383^2 .

It is a cyclic number.

It is not a de Polignac number, because 406626133 - 2⁹ = 406625621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406626095 and 406626104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406624133) 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, 2785038 + ... + 2785183.

It is an arithmetic number, because the mean of its divisors is an integer number (103049107).

Almost surely, 2^406626133 is an apocalyptic number.

It is an amenable number.

406626133 is a deficient number, since it is larger than the sum of its proper divisors (5570295).

406626133 is an equidigital number, since it uses as much as digits as its factorization.

406626133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570294.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 406626133 is about 20164.9729233639. The cubic root of 406626133 is about 740.8525194229.

The spelling of 406626133 in words is "four hundred six million, six hundred twenty-six thousand, one hundred thirty-three".