420404585 has 8 divisors (see below), whose sum is σ = 506597760. Its totient is φ = 334915504.

The previous prime is 420404581. The next prime is 420404587. The reversal of 420404585 is 585404024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420404585 - 2² = 420404581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420404581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174707 + ... + 177096.

It is an arithmetic number, because the mean of its divisors is an integer number (63324720).

Almost surely, 2^420404585 is an apocalyptic number.

It is an amenable number.

420404585 is a deficient number, since it is larger than the sum of its proper divisors (86193175).

420404585 is a wasteful number, since it uses less digits than its factorization.

420404585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352047.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 420404585 is about 20503.7700191940. The cubic root of 420404585 is about 749.1276286474.

The spelling of 420404585 in words is "four hundred twenty million, four hundred four thousand, five hundred eighty-five".