420196866 has 16 divisors (see below), whose sum is σ = 843082464. Its totient is φ = 139617504.

The previous prime is 420196849. The next prime is 420196877. The reversal of 420196866 is 668691024.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109996 + ... + 113751.

It is an arithmetic number, because the mean of its divisors is an integer number (52692654).

Almost surely, 2^420196866 is an apocalyptic number.

420196866 is an abundant number, since it is smaller than the sum of its proper divisors (422885598).

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

420196866 is a wasteful number, since it uses less digits than its factorization.

420196866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224065.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 420196866 is about 20498.7040078147. The cubic root of 420196866 is about 749.0042287268.

The spelling of 420196866 in words is "four hundred twenty million, one hundred ninety-six thousand, eight hundred sixty-six".