420922688 has 28 divisors (see below), whose sum is σ = 835921620. Its totient is φ = 210296832.

The previous prime is 420922679. The next prime is 420922717. The reversal of 420922688 is 886229024.

It can be written as a sum of positive squares in 2 ways, for example, as 258309184 + 162613504 = 16072^2 + 12752^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 151520 + ... + 154272.

Almost surely, 2^420922688 is an apocalyptic number.

It is an amenable number.

420922688 is a deficient number, since it is larger than the sum of its proper divisors (414998932).

420922688 is a wasteful number, since it uses less digits than its factorization.

420922688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154 (or 5144 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 420922688 is about 20516.4004640190. The cubic root of 420922688 is about 749.4352418006.

The spelling of 420922688 in words is "four hundred twenty million, nine hundred twenty-two thousand, six hundred eighty-eight".