420186968 has 32 divisors (see below), whose sum is σ = 805010400. Its totient is φ = 205540608.

The previous prime is 420186953. The next prime is 420187039. The reversal of 420186968 is 869681024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172205 + ... + 174627.

It is an arithmetic number, because the mean of its divisors is an integer number (25156575).

Almost surely, 2^420186968 is an apocalyptic number.

It is an amenable number.

420186968 is a deficient number, since it is larger than the sum of its proper divisors (384823432).

420186968 is a wasteful number, since it uses less digits than its factorization.

420186968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891 (or 2887 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 420186968 is about 20498.4625764958. The cubic root of 420186968 is about 748.9983475929.

The spelling of 420186968 in words is "four hundred twenty million, one hundred eighty-six thousand, nine hundred sixty-eight".