420640573227 has 32 divisors (see below), whose sum is σ = 681185101824. Its totient is φ = 225392025600.

The previous prime is 420640573201. The next prime is 420640573231. The reversal of 420640573227 is 722375046024.

It is not a de Polignac number, because 420640573227 - 2¹⁰ = 420640572203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420640573247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2077174 + ... + 2270667.

It is an arithmetic number, because the mean of its divisors is an integer number (21287034432).

Almost surely, 2^420640573227 is an apocalyptic number.

420640573227 is a deficient number, since it is larger than the sum of its proper divisors (260544528597).

420640573227 is a wasteful number, since it uses less digits than its factorization.

420640573227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348139.

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 420640573227 in words is "four hundred twenty billion, six hundred forty million, five hundred seventy-three thousand, two hundred twenty-seven".