220040003 has 4 divisors (see below), whose sum is σ = 220340928. Its totient is φ = 219739080.

The previous prime is 220039979. The next prime is 220040021. The reversal of 220040003 is 300040022.

220040003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300040022 = 2 ⋅150020011.

It is a cyclic number.

It is not a de Polignac number, because 220040003 - 2²⁰ = 218991427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220040063) 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, 149363 + ... + 150828.

It is an arithmetic number, because the mean of its divisors is an integer number (55085232).

Almost surely, 2^220040003 is an apocalyptic number.

220040003 is a deficient number, since it is larger than the sum of its proper divisors (300925).

220040003 is an equidigital number, since it uses as much as digits as its factorization.

220040003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300924.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 220040003 is about 14833.7454137517. The cubic root of 220040003 is about 603.7176609380.

Adding to 220040003 its reverse (300040022), we get a palindrome (520080025).

The spelling of 220040003 in words is "two hundred twenty million, forty thousand, three".