420937866 has 24 divisors (see below), whose sum is σ = 914453280. Its totient is φ = 139940136.

The previous prime is 420937861. The next prime is 420937873. The reversal of 420937866 is 668739024.

It is a super-3 number, since 3×420937866³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (420937861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24030 + ... + 37673.

It is an arithmetic number, because the mean of its divisors is an integer number (38102220).

Almost surely, 2^420937866 is an apocalyptic number.

420937866 is an abundant number, since it is smaller than the sum of its proper divisors (493515414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420937866 is a wasteful number, since it uses less digits than its factorization.

420937866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62090 (or 62087 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 420937866 is about 20516.7703598788. The cubic root of 420937866 is about 749.4442496237. Note that the first 3 decimals are identical.

The spelling of 420937866 in words is "four hundred twenty million, nine hundred thirty-seven thousand, eight hundred sixty-six".