420737966 has 8 divisors (see below), whose sum is σ = 688480344. Its totient is φ = 191244520.

The previous prime is 420737959. The next prime is 420737971. The reversal of 420737966 is 669737024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9562205 + ... + 9562248.

It is an arithmetic number, because the mean of its divisors is an integer number (86060043).

Almost surely, 2^420737966 is an apocalyptic number.

420737966 is a deficient number, since it is larger than the sum of its proper divisors (267742378).

420737966 is a wasteful number, since it uses less digits than its factorization.

420737966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19124466.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 420737966 is about 20511.8981569235. The cubic root of 420737966 is about 749.3255958279.

The spelling of 420737966 in words is "four hundred twenty million, seven hundred thirty-seven thousand, nine hundred sixty-six".