220406633 has 4 divisors (see below), whose sum is σ = 221115648. Its totient is φ = 219697620.

The previous prime is 220406623. The next prime is 220406639. The reversal of 220406633 is 336604022.

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 a cyclic number.

It is not a de Polignac number, because 220406633 - 2⁶ = 220406569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220406639) 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, 354041 + ... + 354662.

It is an arithmetic number, because the mean of its divisors is an integer number (55278912).

Almost surely, 2^220406633 is an apocalyptic number.

It is an amenable number.

220406633 is a deficient number, since it is larger than the sum of its proper divisors (709015).

220406633 is an equidigital number, since it uses as much as digits as its factorization.

220406633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709014.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 220406633 is about 14846.0982416256. The cubic root of 220406633 is about 604.0527790743.

The spelling of 220406633 in words is "two hundred twenty million, four hundred six thousand, six hundred thirty-three".