420444011 has 8 divisors (see below), whose sum is σ = 458989440. Its totient is φ = 382784832.

The previous prime is 420444007. The next prime is 420444023. The reversal of 420444011 is 110444024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420444011 - 2² = 420444007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420444091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220571 + ... + 222468.

It is an arithmetic number, because the mean of its divisors is an integer number (57373680).

Almost surely, 2^420444011 is an apocalyptic number.

420444011 is a deficient number, since it is larger than the sum of its proper divisors (38545429).

420444011 is a wasteful number, since it uses less digits than its factorization.

420444011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443125.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 420444011 is about 20504.7314295994. The cubic root of 420444011 is about 749.1510459171.

Adding to 420444011 its reverse (110444024), we get a palindrome (530888035).

The spelling of 420444011 in words is "four hundred twenty million, four hundred forty-four thousand, eleven".