420164211 has 8 divisors (see below), whose sum is σ = 562451904. Its totient is φ = 278993000.

The previous prime is 420164203. The next prime is 420164221. The reversal of 420164211 is 112461024.

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 420164211 - 2³ = 420164203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420164221) 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, 278241 + ... + 279746.

It is an arithmetic number, because the mean of its divisors is an integer number (70306488).

Almost surely, 2^420164211 is an apocalyptic number.

420164211 is a deficient number, since it is larger than the sum of its proper divisors (142287693).

420164211 is a wasteful number, since it uses less digits than its factorization.

420164211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558241.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 420164211 is about 20497.9074785696. The cubic root of 420164211 is about 748.9848256257.

The spelling of 420164211 in words is "four hundred twenty million, one hundred sixty-four thousand, two hundred eleven".