406623333 has 4 divisors (see below), whose sum is σ = 542164448. Its totient is φ = 271082220.

The previous prime is 406623317. The next prime is 406623353. The reversal of 406623333 is 333326604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 406623333 - 2⁴ = 406623317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406623333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406623353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67770553 + ... + 67770558.

It is an arithmetic number, because the mean of its divisors is an integer number (135541112).

Almost surely, 2^406623333 is an apocalyptic number.

It is an amenable number.

406623333 is a deficient number, since it is larger than the sum of its proper divisors (135541115).

406623333 is a wasteful number, since it uses less digits than its factorization.

406623333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135541114.

The product of its (nonzero) digits is 23328, while the sum is 30.

The square root of 406623333 is about 20164.9034959258. The cubic root of 406623333 is about 740.8508189323.

Adding to 406623333 its reverse (333326604), we get a palindrome (739949937).

The spelling of 406623333 in words is "four hundred six million, six hundred twenty-three thousand, three hundred thirty-three".