420684524 has 24 divisors (see below), whose sum is σ = 814260048. Its totient is φ = 188913600.

The previous prime is 420684521. The next prime is 420684541. The reversal of 420684524 is 425486024.

It is not an unprimeable number, because it can be changed into a prime (420684521) by changing a digit.

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, 107402 + ... + 111249.

It is an arithmetic number, because the mean of its divisors is an integer number (33927502).

Almost surely, 2^420684524 is an apocalyptic number.

It is an amenable number.

420684524 is a deficient number, since it is larger than the sum of its proper divisors (393575524).

420684524 is a wasteful number, since it uses less digits than its factorization.

420684524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218705 (or 218703 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 420684524 is about 20510.5954082274. The cubic root of 420684524 is about 749.2938681197.

The spelling of 420684524 in words is "four hundred twenty million, six hundred eighty-four thousand, five hundred twenty-four".