418222001 has 4 divisors (see below), whose sum is σ = 419957604. Its totient is φ = 416486400.

The previous prime is 418221997. The next prime is 418222081. The reversal of 418222001 is 100222814.

It is a happy number.

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 148474225 + 269747776 = 12185^2 + 16424^2 .

It is a cyclic number.

It is not a de Polignac number, because 418222001 - 2² = 418221997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (418222081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867440 + ... + 867921.

It is an arithmetic number, because the mean of its divisors is an integer number (104989401).

Almost surely, 2^418222001 is an apocalyptic number.

It is an amenable number.

418222001 is a deficient number, since it is larger than the sum of its proper divisors (1735603).

418222001 is a wasteful number, since it uses less digits than its factorization.

418222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735602.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 418222001 is about 20450.4767915078. The cubic root of 418222001 is about 747.8289814872.

Adding to 418222001 its reverse (100222814), we get a palindrome (518444815).

The spelling of 418222001 in words is "four hundred eighteen million, two hundred twenty-two thousand, one".