420850684 has 12 divisors (see below), whose sum is σ = 775251400. Its totient is φ = 199350288.

The previous prime is 420850681. The next prime is 420850733. The reversal of 420850684 is 486058024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420850681) by changing a digit.

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, 2768679 + ... + 2768830.

Almost surely, 2^420850684 is an apocalyptic number.

It is an amenable number.

420850684 is a deficient number, since it is larger than the sum of its proper divisors (354400716).

420850684 is a wasteful number, since it uses less digits than its factorization.

420850684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537532 (or 5537530 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 420850684 is about 20514.6455977187. The cubic root of 420850684 is about 749.3925059935.

The spelling of 420850684 in words is "four hundred twenty million, eight hundred fifty thousand, six hundred eighty-four".