420890485 has 16 divisors (see below), whose sum is σ = 529856640. Its totient is φ = 320514880.

The previous prime is 420890473. The next prime is 420890513. The reversal of 420890485 is 584098024.

It is not a de Polignac number, because 420890485 - 2⁵ = 420890453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10147 + ... + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (33116040).

Almost surely, 2^420890485 is an apocalyptic number.

It is an amenable number.

420890485 is a deficient number, since it is larger than the sum of its proper divisors (108966155).

420890485 is a wasteful number, since it uses less digits than its factorization.

420890485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40988.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 420890485 is about 20515.6156378501. The cubic root of 420890485 is about 749.4161292816.

The spelling of 420890485 in words is "four hundred twenty million, eight hundred ninety thousand, four hundred eighty-five".