420808652 has 24 divisors (see below), whose sum is σ = 809237520. Its totient is φ = 189877760.

The previous prime is 420808649. The next prime is 420808669. The reversal of 420808652 is 256808024.

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, 28877 + ... + 40932.

It is an arithmetic number, because the mean of its divisors is an integer number (33718230).

Almost surely, 2^420808652 is an apocalyptic number.

It is an amenable number.

420808652 is a deficient number, since it is larger than the sum of its proper divisors (388428868).

420808652 is a wasteful number, since it uses less digits than its factorization.

420808652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69961 (or 69959 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 420808652 is about 20513.6211332860. The cubic root of 420808652 is about 749.3675569116.

The spelling of 420808652 in words is "four hundred twenty million, eight hundred eight thousand, six hundred fifty-two".