420035785 has 16 divisors (see below), whose sum is σ = 543299904. Its totient is φ = 309903552.

The previous prime is 420035783. The next prime is 420035807. The reversal of 420035785 is 587530024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 420035785 - 2¹ = 420035783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420035785.

It is not an unprimeable number, because it can be changed into a prime (420035783) 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 15 ways as a sum of consecutive naturals, for example, 96874 + ... + 101116.

It is an arithmetic number, because the mean of its divisors is an integer number (33956244).

Almost surely, 2^420035785 is an apocalyptic number.

It is an amenable number.

420035785 is a deficient number, since it is larger than the sum of its proper divisors (123264119).

420035785 is a wasteful number, since it uses less digits than its factorization.

420035785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 420035785 is about 20494.7745779260. The cubic root of 420035785 is about 748.9085071098.

The spelling of 420035785 in words is "four hundred twenty million, thirty-five thousand, seven hundred eighty-five".